A simpler and smaller rewrite of Google Android's libphonenumber
library in javascript.
If youβre trying to build a React component with it, take a look at react-phone-number-input
.
Google's libphonenumber
is an ultimate phone number formatting and parsing library developed by Google for Android phones. It is written in C++ and Java, and, while it has an official autogenerated javascript port, that port is tightly coupled to Google's closure
javascript framework, and, when compiled into a bundle, weighs about 550 kB (350 kB code + 200 kB metadata).
With many websites today asking for user's phone number, the internet could benefit from a simpler and smaller library that would just get the parsing and formatting right, and that's what libphonenumber-js
is.
-
Smaller footprint:
145 kB
(65 kB code + 80 kB sufficient metadata) vs the original Google's550 kB
(350 kB code + 200 kB full metadata). -
Can search for phone numbers in text (Google's autogenerated javascript port can't).
-
Aims at parsing and formatting people's phone numbers while skipping all other "special" cases like:
-
Emergency phone numbers like
911
. -
"Short codes": short SMS-only numbers like
12345
. -
Numbers starting with a
*
, like*555
. -
Alphabetic phone numbers like
1-800-GOT-MILK
: people don't input their phone numbers like that, it's only used in advertisement. -
"Two-in-one" phone numbers with "combined" extensions like
(530) 583-6985 x302/x2303
that in fact represent two separate phone numbers, because the library can only return a single phone number when parsing a string. -
Overall, doesn't support formatting non-"conventional" numbers like numbers with the "area code" omitted or "alternative" "short" numbers like Australian
13
-smart numbers. For example, when dialing phone numbers within the same "area", people sometimes skip the "area code", and dial, say,456-789
instead of(123) 456-789
. Google'slibphonenumber
supports formatting such numbers (with "area code" omitted) because it is used for dialing on the Android phone operating system. Becauselibphonenumber-js
isn't a phone operating system and is not used for actual dialing β only for inputting internationally-dialable personal phone numbers β it doesn't format such "short" phone numbers because it doesn't need to support those. -
Any other "miscellaneous" cases that're considered irrelevant for the task.
-
-
Doesn't provide "geolocation" by a phone number.
-
Doesn't use hyphens or brackets when formatting international phone numbers, only whitespace (seems more logical this way).
-
Doesn't set
.country
to"001"
when parsing "non-geographic" phone numbers (like mobile satellite communications services). Instead,.country
isundefined
in those cases, and a developer can call.isNonGeographic()
method of thePhoneNumber
instance to find out whether the parsed phone number is a "non-geographic" one. -
Doesn't provide the equivalent of
libphonenumber
'sformatNumberForMobileDialing()
function that formats a number for dialing using a mobile phone within the country: dialing local numbers from a mobile phone is a bit more complicated in some countries like Brazil or Colombia where they require adding "carrier codes" when making a call. Sincelibphonenumber-js
is not a dialing library (we're not Android phone operaing system), it doesn't prepend any "carrier codes" when formatting phone numbers, though it does parse such "carrier codes" correctly.
On March 9th, 2020, GitHub, Inc. silently banned my account (erasing all my repos, issues and comments, even in my employer's private repos) without any notice or explanation. Because of that, all source codes had to be promptly moved to GitLab. The GitHub repo is now only used as a backup (you can star the repo there too), and the primary repo is now the GitLab one. Issues can be reported in any repo.
via npm
$ npm install libphonenumber-js --save
via yarn
$ yarn add libphonenumber-js
If you're not using a bundler then use a standalone version from a CDN.
import parsePhoneNumber from 'libphonenumber-js'
const phoneNumber = parsePhoneNumber(' 8 (800) 555-35-35 ', 'RU')
if (phoneNumber) {
phoneNumber.country === 'RU'
phoneNumber.number === '+78005553535'
phoneNumber.isPossible() === true
phoneNumber.isValid() === true
// Note: `.getType()` requires `/max` metadata: see below for an explanation.
phoneNumber.getType() === 'TOLL_FREE'
}
import {
isPossiblePhoneNumber,
isValidPhoneNumber,
validatePhoneNumberLength
} from 'libphonenumber-js'
isPossiblePhoneNumber('8 (800) 555-35-35', 'RU') === true
isValidPhoneNumber('8 (800) 555-35-35', 'RU') === true
validatePhoneNumberLength('8 (800) 555', 'RU') === 'TOO_SHORT'
validatePhoneNumberLength('8 (800) 555-35-35', 'RU') === undefined // Length is valid.
isPossiblePhoneNumber()
only validates phone number length, while isValidPhoneNumber()
validates both phone number length and the actual phone number digits.
validatePhoneNumberLength()
is just a more detailed version of isPossiblePhoneNumber()
βΒ if the phone number length is invalid, it returns the actual reason: TOO_SHORT
, TOO_LONG
, etc.
import parsePhoneNumber from 'libphonenumber-js'
const phoneNumber = parsePhoneNumber('+12133734253')
phoneNumber.formatInternational() === '+1 213 373 4253'
phoneNumber.formatNational() === '(213) 373-4253'
phoneNumber.getURI() === 'tel:+12133734253'
import { AsYouType } from 'libphonenumber-js'
new AsYouType().input('+12133734')
// Outputs: '+1 213 373 4'
new AsYouType('US').input('2133734')
// Outputs: '(213) 373-4'
import { findPhoneNumbersInText } from 'libphonenumber-js'
findPhoneNumbersInText(`
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`, 'US')
// Outputs:
//
// [{
// number: PhoneNumber {
// country: 'RU',
// countryCallingCode: '7',
// number: '+78005553535',
// nationalNumber: '8005553535'
// },
// startsAt : 22,
// endsAt : 40
// }, {
// number: PhoneNumber {
// country: 'US',
// countryCallingCode: '1',
// number: '+12133734253',
// nationalNumber: '2133734253',
// ext: '1234'
// },
// startsAt : 86,
// endsAt : 110
// }]
This library provides different "metadata" sets, "metadata" being a list of phone number parsing and formatting rules for all countries. The complete list of those rules is huge, so this library provides a way to optimize bundle size by choosing between max
, min
, mobile
and "custom" metadata:
-
max
β The complete metadata set, is about145 kilobytes
in size (libphonenumber-js/metadata.max.json
). Choose this when you need the most strict version ofisValid()
, or if you need to detect phone number type ("fixed line", "mobile", etc). -
min
β (default) The smallest metadata set, is about80 kilobytes
in size (libphonenumber-js/metadata.min.json
). Choose this by default: when you don't need to detect phone number type ("fixed line", "mobile", etc), or when a basic version ofisValid()
is enough. Themin
metadata set doesn't contain the regular expressions for phone number digits validation (via.isValid()
) and detecting phone number type (via.getType()
) for most countries. In this case,.isValid()
still performs some basic phone number validation (for example, checks phone number length), but it doesn't validate phone number digits themselves the waymax
metadata validation does. -
mobile
β The complete metadata set for dealing with mobile numbers only, is about95 kilobytes
in size (libphonenumber-js/metadata.mobile.json
). Choose this when you needmax
metadata and when you only accept mobile numbers. Other phone number types will still be parseable, but they won't be recognized as being "valid" (.isValid()
will returnfalse
).
To use a particular metadata set, simply import functions from a relevant sub-package:
libphonenumber-js/max
libphonenumber-js/min
libphonenumber-js/mobile
Importing functions directly from libphonenumber-js
effectively results in using the min
metadata.
Sometimes (rarely) not all countries are needed, and in those cases developers may want to generate their own "custom" metadata set. For those cases, there's libphonenumber-js/core
sub-package which doesn't come pre-packaged with any default metadata set and instead accepts metadata as the last argument of each exported function.
A "country code" is a two-letter ISO country code (like US
).
This library supports all officially assigned ISO alpha-2 country codes, plus a few extra ones like: AC
(Ascension Island), TA
(Tristan da Cunha), XK
(Kosovo).
To check whether a country code is supported, use isSupportedCountry()
function.
There're several calling codes that don't belong to any country:
+800
β Universal International Toll Free Number+808
β Universal International Shared Cost Number+870
β Inmarsat Global Limited+878
β Universal Personal Telecommunications+881
β Global Mobile Satellite System+882
and+883
β International Networks+888
β United Nations Office for the Coordination of Humanitarian Affairs+979
β International Premium Rate Service
Such phone numbering plans are called "non-geographic", and their phone numbers have country
set to undefined
.
"National (significant) number" are the national phone number digits (without "national prefix"). For example, +1 213 373 4253
(or (213) 373-4253
in national format) is a US phone number and its national (significant) number is 213 373 4253
. Another example is +33 1 45 45 32 45
(or 01 45 45 32 45
in national format) which is a French phone number where they add 0
"national prefix" when writing phone numbers in national format; in this case the national (significant) number is 1 45 45 32 45
.
"Country calling code" are the digits between the +
and the national (significant) number when the number is written in international format. E.g. for US country calling code is 1
and for France it's 33
. Several countries can share the same "country calling code", e.g. NANPA countries like USA and Canada sharing the same 1
country calling code.
Parses a phone number from string
.
Can be imported both as a "default" export and as a "named" export parsePhoneNumberFromString
.
import parsePhoneNumber from 'libphonenumber-js'
// Or: import { parsePhoneNumberFromString as parsePhoneNumber } from 'libphonenumber-js'
const phoneNumber = parsePhoneNumber('(213) 373-42-53 ext. 1234', 'US')
if (phoneNumber) {
console.log(phoneNumber.formatNational())
}
Returns an instance of PhoneNumber
class, or undefined
if no phone number could be parsed: for example, when the string contains no phone number, or the phone number starts with a non-existent country calling code, etc.
Available options
:
-
defaultCountry: string
β Default country for parsing numbers written in non-international form (without a+
sign). Will be ignored when parsing numbers written in international form (with a+
sign). Instead of passing it asoptions.defaultCountry
, one could also pass it as a standalonedefaultCountry
argument (for convenience). -
defaultCallingCode: string
β Default calling code for parsing numbers written in non-international form (without a+
sign). Will be ignored when parsing numbers written in international form (with a+
sign). It could be specified when parsing phone numbers belonging to "non-geographic numbering plans" which by nature don't have a country code, making thedefaultCountry
option unusable. -
extract: boolean
β Defines the "strictness" of parsing a phone number. By default, theextract
flag istrue
meaning that it will attempt to extract the phone number from an input string like"My phone number is (213) 373-4253 and my hair is blue"
. This could be thought of as "less strict" parsing. To make it "more strict", one could passextract: false
flag, in which case the function will attempt to parse the input string as if the whole string was a phone number. Applied to the example above, it would returnundefined
because the entire string is not a phone number, but for input string"(213) 373-4253"
it would return a parsedPhoneNumber
.
If a developer wants to know the exact reason why the phone number couldn't be parsed then they can use parsePhoneNumberWithError()
function which throws the exact error:
import { parsePhoneNumberWithError, ParseError } from 'libphonenumber-js'
try {
const phoneNumber = parsePhoneNumberWithError('(213) 373-42-53 ext. 1234', {
defaultCountry: 'US'
})
} catch (error) {
if (error instanceof ParseError) {
// Not a phone number, non-existent country, etc.
console.log(error.message)
} else {
throw error
}
}
Possible errors
-
NOT_A_NUMBER
β When the supplied string is not a phone number. For example, when there are no digits:"abcde"
,"+"
. -
INVALID_COUNTRY
- When
defaultCountry
doesn't exist (or isn't supported by this library yet):parsePhoneNumber('(111) 222-3333', 'XX')
. - When parsing a non-international number without a
defaultCountry
:parsePhoneNumber('(111) 222-3333')
. - When an international number's country calling code doesn't exist:
parsePhoneNumber('+9991112223333')
.
- When
-
TOO_SHORT
β When the number is too short. For example, just 1 or 2 digits:"1"
,"+12"
. -
TOO_LONG
β When the national (significant) number is too long (17 digits max) or when the string being parsed is too long (250 characters max).
By default, the parsing function will attempt to extract a phone number from an input string even in cases like "Support: (213) 373-4253 (robot)"
, which mimicks the behavior of the original Google's libphonenumber
library, and is the default behavior for legacy reasons. However, if "strict" input validation is required, one can pass extract: false
flag to demand that the whole input string be a viable phone number.
parsePhoneNumber('Call: (213) 373-4253', 'US') === PhoneNumber
// When parsing the same string with `extract: false` flag,
// it will return `undefined`, because a phone number can't
// contain letters or a colon.
parsePhoneNumber('Call: (213) 373-4253', {
defaultCountry: 'US',
extract: false
}) === undefined
parsePhoneNumber('(213) 373-4253', {
defaultCountry: 'US',
extract: false
}) === PhoneNumber
PhoneNumber
class instance has the following properties:
number: string
βΒ The phone number inE.164
format. Example:"+12133734253"
.countryCallingCode: string
β The country calling code. Example:"1"
.nationalNumber: string
β The national (significant) number. Example:"2133734253"
.country: string?
β The country code. Example:"US"
. Will beundefined
when nocountry
could be derived from the phone number. For example, when several countries have the samecountryCallingCode
and thenationalNumber
doesn't look like it belongs to any of them. Or when a number belongs to a non-geographic numbering plan.ext: string?
β The phone number extension, if any. Example:"1234"
.carrierCode: string?
β The "carrier code", if any. Example:"15"
. "Carrier codes" are only used in Colombia and Brazil and only when dialing within those countries from a mobile phone to a fixed line number.
PhoneNumber
class instance provides the following methods:
Sets a phone number extension of a phone number. Could be useful when formatting phone numbers stored as two separate fields: the phone number itself and the extension part.
const phone = "+12133734253"
const phoneExt = "1234"
const phoneNumber = parsePhoneNumber(phone)
if (phoneNumber) {
if (phoneExt) {
phoneNumber.setExt(phoneExt)
}
// Returns "(213) 373-4253 ext. 1234"
return phoneNumber.formatNational()
}
Formats the phone number into a string according to a format
.
Available format
s:
NATIONAL
β Example:"(213) 373-4253"
INTERNATIONAL
β Example:"+1 213 373 4253"
E.164
β Example:"+12133734253"
RFC3966
(the phone number URI) β Example:"tel:+12133734253;ext=123"
IDD
β "Out-of-country" dialing format. Example:"011 7 800 555 35 35"
for+7 800 555 35 35
being called out ofoptions.fromCountry === "US"
. If nooptions.fromCountry
was passed or if there's no default IDD prefix foroptions.fromCountry
then returnsundefined
.
Available options
:
-
formatExtension(number, extension)
β Formatsnumber
andextension
into a string. By default returns${number} ext. ${extension}
for almost all countries with rare exceptions of some special cases like${number} x${extension}
for UK. -
nationalPrefix: Boolean
β Some phone numbers can be formatted both with national prefix and without it. In such cases the library defaults to "with national prefix" (for legacy reasons). PassnationalPrefix: false
option to force formatting without national prefix in such cases.
Examples:
import parsePhoneNumber from 'libphonenumber-js'
const phoneNumber = parsePhoneNumber('+12133734253')
phoneNumber.format("NATIONAL") === '(213) 373-4253'
phoneNumber.format("INTERNATIONAL") === '+1 213 373 4253'
phoneNumber.format("RFC3966") === 'tel:+12133734253'
// Aliases
phoneNumber.formatNational() === phoneNumber.format("NATIONAL")
phoneNumber.formatInternational() === phoneNumber.format("INTERNATIONAL")
phoneNumber.getURI() === phoneNumber.format("RFC3966")
Checks if the phone number is "possible". Only checks the phone number length, doesn't check the actual phone number digits against any regular expressions.
Checks if the phone number is "valid". First checks the phone number length and then checks the phone number digits against all available regular expressions.
By default the library uses "minimal" metadata which is only 75 kilobytes in size but also doesn't include the precise validation regular expressions resulting in less strict validation rules (some very basic validation like length check is still included for each country). If you don't mind the extra 65 kilobytes of metadata then use "full" metadata instead (140 kilobytes). Google's library always uses "full" metadata so it will yield different isValidNumber()
results compared to the "minimal" metadata used by default in this library.
See an example illustrating different results when using /min
vs /max
vs /mobile
import parseMin from 'libphonenumber-js/min'
import parseMax from 'libphonenumber-js/max'
import parseMobile from 'libphonenumber-js/mobile'
// Mobile numbers in Singapore starting from `8`
// can only have the second digit in the range of `0..8`.
// Here the second digit is `9` which makes it an invalid mobile number.
// This is a "strict" (advanced) validation rule and is
// not included in the (default) "min" bundle.
// The basic number length check passes (`8..11`) and the
// "loose" national number validation regexp check passes too:
// `(?:1\d{3}|[369]|7000|8(?:\d{2})?)\d{7}`.
parseMin('+6589555555').isValid() === true
// The "advanced" validation regexp for mobile numbers is
// `(?:8[1-8]|9[0-8])\\d{6}` and possible lengths are `8`.
parseMax('+6589555555').isValid() === false
parseMobile('+6589555555').isValid() === false
See "Using phone number validation feature" for choosing between isPossible()
and isValid()
.
Returns a list of countries this phone number could possibly belong to.
Can be used when parsing complete international phone numbers containing a "calling code" that is shared between several countries. If parsing such a phone number returns country: undefined
then getPossibleCountries()
function could be used to somehow speculate about what country could this phone number possibly belong to.
Returns phone number type (fixed line, mobile, toll free, etc) or undefined
(if the number is invalid or if there are no phone number type regular expressions for this country in metadata).
By default the library uses "minimal" metadata which is only 75 kilobytes in size but also doesn't include the regular expressions for determining a specific phone number type (fixed line, mobile, toll free, etc) resulting in getType()
returning undefined
for most countries. If you don't mind the extra 65 kilobytes of metadata then use "full" metadata instead (140 kilobytes). Google's library always uses "full" metadata so it will yield different getNumberType()
results compared to the "minimal" metadata used by default in this library.
The list of possible return values
MOBILE
β Cellphones.FIXED_LINE
β Stationary phones.FIXED_LINE_OR_MOBILE
β Could beMOBILE
orFIXED_LINE
.PREMIUM_RATE
β Callers are charged by call or per minute. SMS text messages are also subject to charge.TOLL_FREE
β Free to call from anywhere.SHARED_COST
β "An intermediate level of telephone call billing where the charge for calling a particular international or long-distance phone number is partially, but not entirely, paid for by the recipient".VOIP
βΒ "IP telephony". Calls are made over the Internet rather than via the conventional telephone-only lines.PERSONAL_NUMBER
β Phones connected by satellites.PAGER
β "Pagers" are wireless telecommunications devices that were widely used in the 80-es and could receive (and, optionally, send) text or voice messages.UAN
β "UAN is a number resource that allows a service or business with several terminating lines to be reached through a unique universal number. A UAN number shall be dialable from the entire Pakistan, based on the applicantβs proposed coverage without dialing the area code. UAN cannot be assigned to two separate business or mutually exclusive public services. Each service provider who allows UAN through its network shall offer a tariff, which is not more expensive than the normal tariff available for a similar non-UAN public service".VOICEMAIL
β "A voicemail access number is a telephone number provided by a voicemail service to allow subscribers to dial into their voicemail accounts and manage any currently saved messages. Typically, the number is used when a subscriber is away from home and wishes to check any voice messages currently stored on the service. Originally envisioned as part of the features associated with voicemail accounts offered with land line accounts, many mobile service providers today also supply their customers with a voicemail access number to use when checking messages from any phone other than the mobile or cellular unit associated with the account".
See an example illustrating different results when using /min
vs /max
vs /mobile
import parseMin from 'libphonenumber-js/min'
import parseMax from 'libphonenumber-js/max'
import parseMobile from 'libphonenumber-js/mobile'
// Singapore valid mobile number.
// The (default) "min" bundle doesn't contain any regexps for
// getting phone number type based on national number (for Singapore).
parseMin('+6584655555').getType() === undefined
// The "max" bundle contains regexps for
// getting phone number type based on national number
// for all possible phone number types.
parseMax('+6584655555').getType() === 'MOBILE'
// The "mobile" bundle contains regexps for
// getting phone number type based on national number
// for mobile phone numbers only.
parseMobile('+6584655555').getType() === 'MOBILE'
Returns true
if the number belongs to a "non-geographic numbering plan".
Compares two PhoneNumber
s: returns true
if they're equal, false
otherwise.
Checks if input
can be parsed as a "possible" phone number. A phone number is "possible" when it has valid length. The actual phone number digits aren't validated.
isPossiblePhoneNumber('8 (888) 888-88-88', 'RU') === true
isPossiblePhoneNumber('+12223333333') === true
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
This function is just a shortcut for a two-step process of "strictly" parsing a phone number and then calling .isPossible()
.
Checks if input
can be parsed as a "valid" phone number. A phone number is "valid" when it has valid length, and the actual phone number digits match the regular expressions for its country.
isValidPhoneNumber('8 (888) 888-88-88', 'RU') === false
isValidPhoneNumber('8 (800) 555-35-35', 'RU') === true
isValidPhoneNumber('+12223333333') === false
isValidPhoneNumber('+12133734253') === true
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
This function is just a shortcut for a two-step process of "strictly" parsing a phone number and then calling .isValid()
.
See "Using phone number validation feature" for choosing between isPossible()
and isValid()
.
Same as isValidPhoneNumber()
but with the "default country" argument being an "exact country" instead.
This function is not currently exported from this library. The reason is that its result would be too vague when false
is returned β it could mean any of:
- The input is not a valid phone number.
- The input is a valid phone number but it belongs to another country.
- The input is a phone number that belongs to the correct country but is not valid.
At least the second case should be handled separately from a "User Experience" point of view: if the user has input a valid phone number but for another country, they should be notified that "the country is incorrect" rather than that "the phone number is incorrect", otherwise it would be bad UX design.
But for those who'd still like to have such function, here's a possible implementation for it:
export default function isValidPhoneNumberForCountry(phoneNumberString, country) {
const phoneNumber = parsePhoneNumber(phoneNumberString, {
defaultCountry: country,
// Demand that the entire input string must be a phone number.
// Otherwise, it would "extract" a phone number from an input string.
extract: false
})
if (!phoneNumber) {
return false
}
if (phoneNumber.country !== country) {
return false
}
return phoneNumber.isValid()
}
The same approach could be used to implement an isPossiblePhoneNumberForCountry()
function.
Checks if input
phone number length is valid. If it is, then nothing is returned. Otherwise, a rejection reason is returned.
Possible rejection reasons
-
NOT_A_NUMBER
β When the supplied string is not a phone number. For example, when there are no digits:"abcde"
,"+"
. -
INVALID_COUNTRY
- When
defaultCountry
doesn't exist (or isn't supported by this library yet):parsePhoneNumber('(111) 222-3333', 'XX')
. - When parsing a non-international number without a
defaultCountry
:parsePhoneNumber('(111) 222-3333')
. - When an international number's country calling code doesn't exist:
parsePhoneNumber('+9991112223333')
.
- When
-
TOO_SHORT
β When the number is too short. For example, just 1 or 2 digits:"1"
,"+12"
. -
TOO_LONG
β When the national (significant) number is too long (17 digits max) or when the string being parsed is too long (250 characters max). -
INVALID_LENGTH
β When the national (significant) number is neither too short, nor too long, but somewhere in between and its length is still invalid.
validatePhoneNumberLength('abcde') === 'NOT_A_NUMBER'
validatePhoneNumberLength('444 1 44') === 'INVALID_COUNTRY'
validatePhoneNumberLength('444 1 44', 'TR') === 'TOO_SHORT'
validatePhoneNumberLength('444 1 444', 'TR') === undefined // Length is valid.
validatePhoneNumberLength('444 1 4444', 'TR') === 'INVALID_LENGTH'
validatePhoneNumberLength('444 1 44444', 'TR') === 'INVALID_LENGTH'
validatePhoneNumberLength('444 1 444444', 'TR') === undefined // Length is valid.
validatePhoneNumberLength('444 1 4444444444', 'TR') === 'TOO_LONG'
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
This function is just a more detailed version of isPossiblePhoneNumber()
for those who've asked for a more specific rejection reason.
The phone number is parsed "strictly" from the input string.
Creates a formatter for a partially entered phone number.
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
The formatter instance has the following methods:
-
input(text: string)
β Appends text to the input. Returns the formatted phone number. -
reset()
β Resets the input.
new AsYouType().input('+12133734') === '+1 213 373 4'
new AsYouType('US').input('2133734') === '(213) 373-4'
The formatter instance also provides the following getters:
-
getNumber(): PhoneNumber?
β Returns thePhoneNumber
. Will returnundefined
if no national (significant) number digits have been entered so far, or if nodefaultCountry
/defaultCallingCode
has been set and the user enters a phone number not in international format. -
getNumberValue(): string?
β Returns the phone number inE.164
format. For example, for country"US"
and input"(222) 333-4444"
it will return"+12223334444"
. Will returnundefined
if no digits have been input, or when inputting a phone number in national format and no default country or default "country calling code" have been set. -
getChars(): string
β Returns the phone number characters entered by the user: digits and a+
sign (if present). Returns an empty string if no phone number characters have been input. -
getTemplate(): string
β Returns the template used to format the phone number characters (digits and a+
sign, if present), which are denoted byx
-es. Returns an empty string if no phone number characters have been input.
// National phone number input example.
const asYouType = new AsYouType('US')
asYouType.input('2') === '2'
asYouType.getNumber().number === '+12'
asYouType.getChars() === '2'
asYouType.getTemplate() === 'x'
asYouType.input('1') === '21'
asYouType.getNumber().number === '+121'
asYouType.getChars() === '21'
asYouType.getTemplate() === 'xx'
asYouType.input('3') === '(213)'
asYouType.getNumber().number === '+1213'
asYouType.getChars() === '213'
asYouType.getTemplate() === '(xxx)'
asYouType.input('3734253') === '(213) 373-4253'
asYouType.getNumber().number === '+12133734253'
asYouType.getChars() === '2133734253'
asYouType.getTemplate() === '(xxx) xxx-xxxx'
// International phone number input example.
const asYouType = new AsYouType()
asYouType.input('+1-213-373-4253') === '+1 213 373 4253'
asYouType.getNumber().country === 'US'
asYouType.getNumber().number === '+12133734253'
asYouType.getChars() === '+12133734253'
asYouType.getTemplate() === 'xx xxx xxx xxxx'
-
isInternational(): boolean
βΒ Returnstrue
if the phone number is being input in international format. In other words, returnstrue
if and only if the parsed phone number starts with a"+"
. -
getCallingCode(): string?
βΒ Returns the "country calling code" part of the phone number. Returnsundefined
if the number is not being input in international format, or if no valid "country calling code" has been entered. Supports "non-geographic" phone numbering plans: even though those aren't technically "countries", they have their own "country calling codes" too. -
getCountry(): string?
βΒ Returns a two-letter country code of the phone number. Returnsundefined
for "non-geographic" phone numbering plans. Returnsundefined
if no phone number has been input yet. -
isPossible(): boolean
β Returnstrue
if the phone number is "possible". Is just a shortcut forPhoneNumber.isPossible()
. -
isValid(): boolean
β Returnstrue
if the phone number is "valid". Is just a shortcut forPhoneNumber.isValid()
.
Legacy API (before version 1.6.0
)
For legacy API (before version 1.6.0
) the formatter instance provides the following getters:
-
country: string?
β Phone number country. Will returnundefined
if the country couldn't be derived from the number. -
getNationalNumber(): string
β Returns the national (significant) number part of the phone number. -
getTemplate(): string?
β Same as the current version ofgetTemplate()
with the only difference that it returnsundefined
if no suitable format was found for the number being entered (or if no national (significant) number has been entered so far).
// National phone number input example.
const asYouType = new AsYouType('US')
asYouType.input('2') === '2'
asYouType.getNationalNumber() === '2'
asYouType.input('1') === '21'
asYouType.getNationalNumber() === '21'
asYouType.input('3') === '(213)'
asYouType.getNationalNumber() === '213'
asYouType.input('3734253') === '(213) 373-4253'
asYouType.getNationalNumber() === '2133734253'
// International phone number input example.
const asYouType = new AsYouType()
asYouType.input('+1-213-373-4253') === '+1 213 373 4253'
asYouType.country === 'US'
asYouType.getNationalNumber() === '2133734253'
"As You Type" formatter was created by Google as part of their Android OS and therefore only works for numerical keyboard input, i.e. it can only accept digits (and a +
sign in the start of an international number). When used on desktops where a user can input all kinds of punctuation (spaces, dashes, parens, etc) it simply ignores everything except digits (and a +
sign in the start of an international number).
Google's "As You Type" formatter does not support entering phone number extensions. If your project requires phone number extensions input then use a separate input field for that.
Searches for phone numbers in text
.
Available options
:
defaultCountry: string
defaultCallingCode: string
For the description of defaultCountry
or defaultCallingCode
, see parsePhoneNumber()
function description.
import { findPhoneNumbersInText } from 'libphonenumber-js'
findPhoneNumbersInText(`
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`, 'US')
// Outputs:
//
// [{
// number: PhoneNumber {
// country: 'RU',
// countryCallingCode: '7',
// number: '+78005553535',
// nationalNumber: '8005553535'
// },
// startsAt : 22,
// endsAt : 40
// }, {
// number: PhoneNumber {
// country: 'US',
// countryCallingCode: '1',
// number: '+12133734253',
// nationalNumber: '2133734253',
// ext: '1234'
// },
// startsAt : 86,
// endsAt : 110
// }]
(in previous versions, it was called findNumbers()
)
Legacy API (before version 1.6.0
) example
import { findNumbers } from 'libphonenumber-js'
findNumbers(`
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`, 'US')
// Outputs:
//
// [{
// phone : '8005553535',
// country : 'RU',
// startsAt : 22,
// endsAt : 40
// },
// {
// phone : '2133734253',
// country : 'US',
// ext : '1234',
// startsAt : 86,
// endsAt : 110
// }]
By default it processes the whole text and then outputs the phone numbers found. If the text is very big (say, a hundred thousand characters) then it might freeze the user interface for a couple of seconds. To avoid such lags one can employ "iterator" approach using searchPhoneNumbersInText()
to perform the search asynchronously (e.g. using requestIdleCallback
or requestAnimationFrame
).
(in previous versions, it was called searchNumbers()
)
Asynchronous search example using searchPhoneNumbersInText()
ES6 iterator:
import { searchPhoneNumbersInText } from 'libphonenumber-js'
const text = `
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`
async function() {
for (const number of searchPhoneNumbersInText(text, 'US')) {
console.log(number)
await new Promise(resolve => setTimeout(resolve, 0))
}
console.log('Finished')
}
Java-style iterator (for those still not using ES6):
import { PhoneNumberMatcher } from 'libphonenumber-js'
const matcher = new PhoneNumberMatcher(`
For tech support call +7 (800) 555-35-35 internationally
or reach a local US branch at (213) 373-4253 ext. 1234.
`, {
defaultCountry: 'US',
v2: true
})
// Search cycle iteration.
const iteration = () => {
if (matcher.hasNext()) {
console.log(matcher.next())
setTimeout(iteration, 0)
} else {
console.log('Finished')
}
}
// Run the search.
iteration()
Although Google's javascript port doesn't have the findPhoneNumbersInText()
functionality the Java and C++ ports do. I guess Google just doesn't need to crawl phone numbers on Node.js because they can afford to hire a Java/C++ developer to do that. Still, javascript nowadays is the most popular programming language given its simplicity and user-friendliness. The findPhoneNumbersInText()
function provided is a port of Google's PhoneNumberMatcher.java
into javascript.
Returns an example phone number for a country. Returns an instance of PhoneNumber
class. Will return undefined
if country
doesn't exist or isn't supported by this library.
import examples from 'libphonenumber-js/mobile/examples'
import { getExampleNumber } from 'libphonenumber-js'
const phoneNumber = getExampleNumber('RU', examples)
phoneNumber.formatNational() === '8 (912) 345-67-89'
Checks if a country is supported by this library.
isSupportedCountry('RU') === true
isSupportedCountry('XX') === false
Returns a list of supported countries.
getCountries() === ["AC", "AD", ...]
Returns country calling code for a country. Will throw an error if country
doesn't exist or isn't supported by this library.
getCountryCallingCode('RU') === '7'
getCountryCallingCode('IL') === '972'
Returns phone number extension prefix for a given country. If no custom ext prefix is defined for a country
then the default " ext. "
prefix is returned.
getExtPrefix('US') === ' ext. '
getExtPrefix('GB') === ' x'
Parses digits from string. Can be used for building a phone number extension input component (e.g. react-phone-number-input).
parseDigits('x123') === '123'
parseDigits('Ω€Ω€Ω’Ω£') === '4423'
Parses phone number characters (+
and digits). Can be used for building a phone number input component (e.g. react-phone-number-input).
parseIncompletePhoneNumber('8 (800) 555') === '8800555'
parseIncompletePhoneNumber('+7 800 555') === '+7800555'
parseIncompletePhoneNumber('+Ω€Ω€Ω’Ω£Ω’Ω£Ω’Ω£Ω€') === '+442323234'
Parses next character of an input string while parsing phone number digits (including a +
) from that string. Basically, it discards everything except +
and digits, and +
is only allowed at the start of a phone number.
This function is a low-level one that is currently only used in react-phone-number-input
with input-format
. Frankly speaking, that's the only reason why this function is exported. Other developers should just ignore it and use parseIncompletePhoneNumber()
instead because it's much simpler.
// Suppose a user inputs a "+1 (213) 373-42-53" string
// and it starts parsing that string character-by-character.
parsePhoneNumberCharacter('+', undefined) === '+'
parsePhoneNumberCharacter('1', '+') === '1'
parsePhoneNumberCharacter(' ', '+1') === undefined
parsePhoneNumberCharacter('(', '+1') === undefined
parsePhoneNumberCharacter('2', '+1') === '2'
parsePhoneNumberCharacter('1', '+12') === '1'
parsePhoneNumberCharacter('3', '+121') === '3'
parsePhoneNumberCharacter(')', '+1213') === undefined
parsePhoneNumberCharacter(' ', '+1213') === undefined
parsePhoneNumberCharacter('3', '+1213') === '3'
parsePhoneNumberCharacter('7', '+12133') === '7'
parsePhoneNumberCharacter('3', '+121337') === '3'
parsePhoneNumberCharacter('-', '+121337') === undefined
parsePhoneNumberCharacter('4', '+1213373') === '4'
parsePhoneNumberCharacter('2', '+12133734') === '2'
parsePhoneNumberCharacter('-', '+12133734') === undefined
parsePhoneNumberCharacter('5', '+121337342') === '5'
parsePhoneNumberCharacter('3', '+1213373425') === '3'
So basically, it's the same as parseIncompletePhoneNumber()
with the only difference that it operates at a character-by-character level rather than at a string-as-a-whole level.
The optional emitEvent
argument is a function of (eventName: string)
arguments. It will be called in a situation when the application should stop parsing the input string. Currently, the only situation when that could happen is when it encounters an "out-of-place" +
character. For example, when parsing a "+1 (234) + 56-78"
string it would emit an "end"
event at the second +
character so that the application would return "+1234"
rather than "+12345678"
.
Formats a possibly incomplete phone number.
While the usual parsePhoneNumber(string).format()
function could only be used to format a complete phone number, this function could be used to format a possibly incomplete phone number.
The value
argument should be a (possibly incomplete) phone number in E.164
format.
For the description of the defaultCountry?: string | options?: object
argument, see parsePhoneNumber()
function description.
This function is just an alias for new AsYouType(defaultCountry, metadata).input(value)
. It can be used for building a phone number input component (e.g. react-phone-number-input).
// National numbers, with second argument.
formatIncompletePhoneNumber('8800555', 'RU') === '8 (800) 555'
formatIncompletePhoneNumber('8800555', { defaultCountry: 'RU' }) === '8 (800) 555'
formatIncompletePhoneNumber('8800555', { defaultCallingCode: '7' }) === '8 (800) 555'
// International numbers, without second argument.
formatIncompletePhoneNumber('+7800555') === '+7 800 555'
Legacy API (before version 1.6.0
): parse()
, parseNumber()
, format()
, formatNumber()
, isValidNumber()
, getNumberType()
.
(previously called parse()
)
(legacy API)
Attempts to parse a phone number from text
.
If defaultCountry
is passed then it's gonna be the default country for parsing non-international phone numbers.
Returns { country, phone, ext }
object where
country
is a country code.phone
is a national (significant) number.ext
is a phone number extension.
If the phone number supplied isn't valid then an empty object {}
is returned.
Examples
// Parses international numbers.
parseNumber('+1 213 373 4253') === { country: 'US', phone: '2133734253' }
parseNumber('Phone: +1-213-373-4253.') === { country: 'US', phone: '2133734253' }
parseNumber('+12133734253') === { country: 'US', phone: '2133734253' }
// Parses national numbers provided a default country.
parseNumber('Phone: (213) 373-4253.', 'US') === { country: 'US', phone: '2133734253' }
// Parses phone number extensions.
parseNumber('(213) 373-4253 ext. 123', 'US') === { country: 'US', phone: '2133734253', ext: '123' }
// Parses RFC 3966 phone number URIs.
parseNumber('tel:+78005553535;ext=123') === { country: 'RU', phone: '8005553535', ext: '123' }
If the phone number supplied isn't valid then an empty object {}
is returned.
parseNumber('+1 111 111 1111') === {}
parseNumber('(111) 111-1111', 'US') === {}
parseNumber('abcdefg') === {}
Available options
:
-
defaultCountry : string
β Same as thedefaultCountry
argument. -
extended : boolean
β If set totrue
thenparseNumber()
will attempt to parse even a remotely hypothetical phone number even if it is considered "invalid".
{ extended: true }
documentation and examples
The result of "extended" parsing is an object where
country
is a country code.phone
is a national (significant) number.ext
is a phone number extension.countryCallingCode
is a country calling code.carrierCode
s are only used in Colombia and Brazil and only when dialing within those countries from a mobile phone to a fixed line number.valid: boolean
β whether it's a "valid" (real) phone number.possible: boolean
β a phone number is considered "possible" when it fits the phone number length rules for a given country. E.g. for US national (significant) number regexp is[2-9]\d{9}
and possible national (significant) number length is10
so a phone number(111) 111-1111
is not a "valid" number because it doesn't match the US national (significant) number regexp but it is a "possible" number because it's10
digits long.- Some or all of these properties may be absent from the result object.
// If the number is valid.
parseNumber('Phone: (213) 373-4253.', 'US', { extended: true }) ===
{
country: 'US',
phone: '2133734253',
ext: undefined,
countryCallingCode: 1,
carrierCode: undefined,
valid: true,
possible: true
}
// If the number is not "valid" but "possible".
parseNumber('(111) 111-1111', 'US', { extended: true }) ===
{
country: 'US',
phone: '1111111111',
ext: undefined,
countryCallingCode: 1,
carrierCode: undefined,
valid: false,
possible: true
}
// If the number is not "valid" but "possible"
// and country can't be derived from it.
// (e.g. can't tell if it's a US number or a Canadian number)
parseNumber('+1 111 111 1111', { extended: true }) ===
{
country: undefined,
phone: '1111111111',
ext: undefined,
countryCallingCode: 1,
carrierCode: undefined,
valid: false,
possible: true
}
// If the number is not "possible" (invalid length).
parseNumber('(213) 373', 'US', { extended: true }) ===
{
country: 'US',
phone: '213373',
ext: undefined,
countryCallingCode: 1,
carrierCode: undefined,
valid: false,
possible: false
}
// In some cases if the number is extremely not "possible"
// then an empty object `{}` is returned.
//
// Too short (or too long) for any country's phone number.
parseNumber('1', 'US', { extended: true }) === {}
// Non-existent country calling code.
parseNumber('+210', { extended: true }) === {}
// No phone number found.
parseNumber('abcdefg', 'US', { extended: true }) === {}
The "extended" parsing mode is the default behaviour of the original Google's libphonenumber
: it still returns parsed data even if the phone number being parsed is not considered valid (but is kinda "possible"). I guess this kind of behaviour is better for crawling websites for phone numbers because when mining "big data" it is better to extract all possible info rather than discard some pieces of it prematurely, e.g. when national (significant) number regexp for some country gets outdated which might very well happen because phone numbering plans are changing constantly around the world. Maybe after all it would make sense to make the "extended" parsing mode the default one in the next major version. I guess it would.
Also parses IDD-prefixed phone numbers
Sometimes users icorrectly input phone numbers in "out-of-country" dialing (IDD-prefixed) format instead of the proper international phone number format (the "+" notation). In such cases parseNumber()
will attempt to parse such IDD-prefixed numbers if "default country" is provided:
// International format.
parseNumber('+61 2 3456 7890') === { country: 'AU', phone: '234567890' }
// IDD-prefixed format.
parseNumber('011 61 2 3456 7890', 'US') === { country: 'AU', phone: '234567890' }
(previously called format()
)
(legacy API)
Formats a number
into a string according to a format
.
Available format
s and options
are the same as for PhoneNumber.format(format)
.
The number
argument must be either a result of parseNumber()
function call (to strip national prefix) or an E.164 phone number string (e.g. +12133734253
).
Examples
// Formats E.164 phone numbers.
formatNumber('+12133734253', 'NATIONAL') === '(213) 373-4253'
formatNumber('+12133734253', 'INTERNATIONAL') === '+1 213 373 4253'
// Formats E.164 phone numbers when
// they're not "valid" but still "possible".
formatNumber('+11111111111', 'NATIONAL') === '(111) 111-1111'
formatNumber('+11111111111', 'INTERNATIONAL') === '+1 111 111 1111'
// Formats E.164 phone numbers when
// they're not "valid" and not "possible" (invalid length).
formatNumber('+11111', 'NATIONAL') === '1111'
formatNumber('+11111', 'INTERNATIONAL') === '+1 1111'
// Formats a result of `parseNumber()` function call.
const parsedNumber = parseNumber('2133734253', 'US')
formatNumber(parsedNumber, 'NATIONAL') === '(213) 373-4253'
formatNumber(parsedNumber, 'INTERNATIONAL') === '+1 213 373 4253'
// Formats a result of `parseNumber()` function call in "extended" mode
// when it's not a "valid" number but is still a "possible" one.
const possibleNumber = parseNumber('+11111111111', { extended: true })
formatNumber(possibleNumber, 'NATIONAL') === '(111) 111-1111'
formatNumber(possibleNumber, 'INTERNATIONAL') === '+1 111 111 1111'
// Formats a result of `parseNumber()` function call in "extended" mode
// when it's neither a "valid" number nor a "possible" one (invalid length).
const possibleNumber = parseNumber('+11111', { extended: true })
formatNumber(possibleNumber, 'NATIONAL') === '1111'
formatNumber(possibleNumber, 'INTERNATIONAL') === '+1 1111'
// Formats phone number extensions.
formatNumber({ country: 'US', phone: '2133734253', ext: '123' }, 'NATIONAL') === '(213) 373-4253 ext. 123'
// When given an object not having `phone` property
// (e.g. a empty object `{}`) it will throw.
formatNumber({}) throws Error
(legacy API)
See the description for PhoneNumber.getType()
.
The number
argument can be either a result of the parseNumber()
function call β { country, phone }
β or a string (phone number digits only) possibly accompanied with the second defaultCountry
argument.
Examples
getNumberType('+79160151539') === 'MOBILE'
getNumberType('9160151539', 'RU') === 'MOBILE'
getNumberType({ phone: '9160151539', country: 'RU' }) === 'MOBILE'
(legacy API)
Checks if a phone number is valid, the validation is more strict than parseNumber()
.
The number
argument can be either a result of the parseNumber()
function call β { country, phone }
β or a string (phone number digits only) possibly accompanied with the second defaultCountry
argument.
Examples
isValidNumber('+12133734253') === true
isValidNumber('+1213373') === false
isValidNumber('2133734253', 'US') === true
isValidNumber('21337', 'US') === false
isValidNumber({ phone: '2133734253', country: 'US' }) === true
The difference between using parseNumber()
and isValidNumber()
The difference between using parseNumber()
and isValidNumber()
for phone number validation is that isValidNumber()
also checks the precise regular expressions of possible phone numbers for a country. For example, for Germany parseNumber('123456', 'DE')
would return { country: 'DE', phone: '123456' }
because this phone number matches the general phone number rules for Germany (basic length check, etc). But, if the metadata is compiled with --extended
(or relevant --types
) flag (see Customizing metadata section of this document) then isValidNumber()
is gonna use those precise regular expressions for extensive validation and isValid('123456', 'DE')
will return false
because the phone number 123456
doesn't actually exist in Germany.
This is how it is implemented in the original Google's libphonenumber
: parseNumber()
parses phone numbers and loosely validates them while isValidNumber()
validates phone numbers precisely (provided the precise regular expressions are included in metadata).
The precise regular expressions aren't included in the default metadata because that would cause the default metadata to grow twice in its size: the complete ("full") metadata size is about 145 kilobytes while the reduced ("default") metadata size is about 77 kilobytes. Hence in the default configuration isValidNumber()
performs absolutely the same "lite" validation as parseNumber()
. For enabling extensive phone number validation the simplest way is to import functions from libphonenumber-js/custom
module and supply them with libphonenumber-js/metadata.max.json
. For generating custom metadata see the instructions provided in the Customizing metadata section of this document.
isValidNumberForRegion()
The optional defaultCountry
argument is the default country, i.e. it does not restrict to just that country, e.g. in those cases where several countries share the same phone numbering rules (NANPA, Britain, etc). For example, even though the number 07624 369230
belongs to the Isle of Man ("IM" country code) calling isValidNumber('07624369230', 'GB')
still returns true
because the country is not restricted to GB
, it's just that GB
is the default one for the phone numbering rules. For restricting the country, see isValidNumberForRegion()
, though restricting a country might not be a good idea.
// Even though '07624 369230' number belongs to the Isle of Man ("IM")
// the `defaultCountry` argument "GB" still works here because
// "GB" and "IM" both share the same phone numbering rules ("+44").
isValidNumber('07624369230', 'GB') === true
isValidNumber('07624369230', 'IM') === true
// Imposing country restrictions.
isValidNumberForRegion('07624369230', 'GB') === false
isValidNumberForRegion('07624369230', 'IM') === true
I personally don't use strict phone number validation in my projects. The rationale is that telephone numbering plans can and sometimes do change, meaning that PhoneNumber.isValid()
function may one day become outdated on a website that isn't actively maintained anymore. Imagine a "promo-site" or a "personal website" being deployed once and then running for years without any maintenance, where a client may be unable to submit a simple "Contact Us" form just because this newly allocated pool of mobile phone numbers wasn't present in that old version of libphonenumber-js
bundled in it.
Whenever there's a "business requirement" to validate a phone number that's being input by a user, I prefer using PhoneNumber.isPossible()
instead of PhoneNumber.isValid()
, so that it just validates the phone number length, and doesn't validate the actual phone number digits. But it doesn't mean that you shouldn't use PhoneNumber.isValid()
β maybe in your case it would make sense.
If youβre trying to build a React component with this library, take a look at react-phone-number-input
.
This library is a simpler rewrite of Google's libphonenumber
library. Basically, it mimicks Google's library behavior. Hence, as long as this library's demo page and Google's library demo page exhibit the same behavior, it's not considered a bug.
When reporting issues with:
- Parsing
- Validation
- Formatting
- "As You Type" formatting
one must provide two links:
- A link to the demo page illustrating the supposedly incorrect behavior.
- A link to Google's
libphonenumber
demo page illustrating the expected behavior.
Google's demo page outputs four sections:
- "Parsing Result"
- "Validation Results"
- "Formatting Results"
- "AsYouTypeFormatter Results"
Choose the relevant section of those four corresponding to the type of the bug you're reporting.
In a bug report:
- First, describe the observed
libphonenumber-js
demo result (and provide a link to it). - Second, describe the observed Google's demo result (and provide a link to it).
- The described observed result of Google's demo must be different from the described observed result of
libphonenumber-js
demo, otherwise it's not considered a bug. If you don't agree with Google's demo result then create an issue in Google's repo instead. If they fix it in their library, I'll port the fix to this library.
This library comes with TypeScript "typings". If you happen to find any bugs in those, create an issue.
One can use any npm CDN service, e.g. unpkg.com or jsdelivr.com
<script src="https://unpkg.com/libphonenumber-js@[version]/bundle/libphonenumber-[type].js"></script>
<script>
alert(new libphonenumber.AsYouType('US').input('213-373-4253'))
</script>
where [version]
is an npm package version range (for example, 1.x
or ^1.7.6
) and [type]
is the bundle type: min
, max
or mobile
.
Metadata is generated from Google's PhoneNumberMetadata.xml
by transforming XML into JSON and removing unnecessary fields. See metadata fields description.
Metadata can be accessed programmatically by using the exported Metadata
class.
First, create a Metadata
class instance:
import { Metadata } from 'libphonenumber-js'
const metadata = new Metadata()
Then, select a "numbering plan" (a country):
metadata.selectNumberingPlan('US')
After that, the following methods of metadata.numberingPlan
can be called:
-
leadingDigits(): string?
βΒ Returns "leading digits" pattern. -
possibleLengths(): number[]
βΒ Returns a list of possible lengths of a national (significant) number. -
IDDPrefix(): string
β Returns an International Direct Dialing prefix. -
defaultIDDPrefix(): string?
β Returns a default International Direct Dialing prefix when there're multiple ones available.
Example:
import { Metadata } from 'libphonenumber-js'
const metadata = new Metadata()
metadata.selectNumberingPlan('US')
metadata.numberingPlan.leadingDigits() === undefined
metadata.numberingPlan.possibleLengths() === [10]
metadata.numberingPlan.IDDPrefix() === '011'
metadata.numberingPlan.defaultIDDPrefix() === undefined
Using with custom metadata:
import { Metadata } from 'libphonenumber-js/core'
import min from 'libphonenumber-js/min/metadata'
// import max from 'libphonenumber-js/max/metadata'
// import mobile from 'libphonenumber-js/mobile/metadata'
const metadata = new Metadata(min)
As one can see, the Metadata
class is not documented much. Partially, that's because its usage is not necessarily encouraged, but it's still used, for example, in react-phone-number-input
to get "leading digits" for a country, or to get maximum phone number length for a country. Stick to the methods documented above, don't call any other methods. If you think there's a need to call any other methods, create a discussion issue.
This library comes prepackaged with three types of metadata.
Sometimes, if only a specific set of countries is needed in a project, and a developer really wants to reduce the resulting bundle size, say, by 50 kilobytes (even when including all regular expressions for validating phone number digits and detecting phone number type), then they can generate such custom metadata and pass it as the last argument to this library's "core" functions.
See generate custom metadata instructions.
Then, use the generated metadata.custom.json
file with the "core" functions.
Pass the metadata
argument as the last one to the "core" functions.
In ES6 that would be:
import _parsePhoneNumber, {
findPhoneNumbersInText as _findPhoneNumbersInText,
AsYouType as _AsYouType
} from 'libphonenumber-js/core'
import metadata from 'libphonenumber-js/max/metadata'
function call(func, _arguments) {
var args = Array.prototype.slice.call(_arguments)
args.push(metadata)
return func.apply(this, args)
}
export default function parsePhoneNumber() {
return call(_parsePhoneNumber, arguments)
}
export function findPhoneNumbersInText() {
return call(_findPhoneNumbersInText, arguments)
}
export function AsYouType(country) {
return _AsYouType.call(this, country, metadata)
}
AsYouType.prototype = Object.create(_AsYouType.prototype, {})
AsYouType.prototype.constructor = AsYouType
And for Common.js environment that would be:
var core = require('libphonenumber-js/core')
var metadata = require('libphonenumber-js/max/metadata')
function call(func, _arguments) {
var args = Array.prototype.slice.call(_arguments)
args.push(metadata)
return func.apply(this, args)
}
function parsePhoneNumber() {
return call(core.default, arguments)
}
exports = module.exports = parsePhoneNumber
exports['default'] = parsePhoneNumber
exports.findPhoneNumbersInText = function findPhoneNumbersInText() {
return call(core.findPhoneNumbersInText, arguments)
}
exports.AsYouType = function AsYouType(country) {
return core.AsYouType.call(this, country, metadata)
}
exports.AsYouType.prototype = Object.create(core.AsYouType.prototype, {})
exports.AsYouType.prototype.constructor = exports.AsYouType
Legacy: How to use the generated metadata.custom.json
file with the legacy "custom" functions.
Pass the metadata
argument as the last one to the "custom" functions.
In ES6 that would be:
import {
parseNumber,
formatNumber,
isValidNumber,
getNumberType,
AsYouType
} from 'libphonenumber-js/custom'
import metadata from 'libphonenumber-js/max/metadata'
parseNumber('+78005553535', metadata)
formatNumber({ phone: '8005553535', country: 'RU' }, metadata)
isValidNumber('+78005553535', metadata)
getNumberType('+78005553535', metadata)
new AsYouType('RU', metadata).input('+78005553535')
And for Common.js environment that would be:
var custom = require('libphonenumber-js/custom')
var metadata = require('libphonenumber-js/max/metadata')
exports.parseNumber = function parseNumber() {
var parameters = Array.prototype.slice.call(arguments)
parameters.push(metadata)
return custom.parseNumber.apply(this, parameters)
}
exports.formatNumber = function formatNumber() {
var parameters = Array.prototype.slice.call(arguments)
parameters.push(metadata)
return custom.formatNumber.apply(this, parameters)
}
exports.isValidNumber = function isValidNumber() {
var parameters = Array.prototype.slice.call(arguments)
parameters.push(metadata)
return custom.isValidNumber.apply(this, parameters)
}
exports.getNumberType = function isValidNumber() {
var parameters = Array.prototype.slice.call(arguments)
parameters.push(metadata)
return custom.getNumberType.apply(this, parameters)
}
exports.AsYouType = function AsYouType(country) {
custom.AsYouType.call(this, country, metadata)
}
exports.AsYouType.prototype = Object.create(custom.AsYouType.prototype, {})
exports.AsYouType.prototype.constructor = exports.AsYouType
Metadata should be re-generated each time the project is being deployed because Google constantly updates their metadata.
Google periodically releases new metadata with the changes described in the release notes. Sometimes those are minor non-breaking updates, sometimes those are major-version breaking updates.
Metadata update process is automated through an "autoupdate" script: see autoupdate.cmd
(Windows) or autoupdate.sh
(Linux/macOS). The script detects changes to PhoneNumberMetadata.xml
in Google libphonenumber
's repo and if there are changes then it pulls the latest metadata, processes it, commits the changes to GitHub, builds a new version of the library and releases it to NPM. So this library's metadata is supposed to be up-to-date. I could set up this script to run automatically but on my Windows machine ssh-agent
doesn't work properly so I run the "autoupdate" script manually from time to time.
Also Google sometimes (very rarely) updates their code:
phonenumberutil.js
βparseNumber()
,formatNumber()
,isValidNumber()
,getNumberType()
AsYouTypeFormatter.java
βAsYouType
PhoneNumberMatcher.java
βfindPhoneNumbersInText()
The latest sync-up was on Mar 18th, 2024.
After cloning this repo, ensure dependencies are installed by running:
npm install
This module is written in ES6 and uses Babel for ES5 transpilation. Widely consumable JavaScript can be produced by running:
npm run build
Once npm run build
has run, you may import
or require()
directly from
node.
After developing, the full test suite can be evaluated by running:
npm test
Test coverage must remain at 100%:
npm run test-coverage
When you're ready to test your new functionality on a real project, you can run
npm pack
It will build
, test
and then create a .tgz
archive which you can then install in your project folder
npm install [module name with version].tar.gz
This component comes with a 100% code coverage.
To run tests:
npm test
To generate a code coverage report:
npm run test-coverage
The code coverage report can be viewed by opening ./coverage/lcov-report/index.html
.
If you like this library then you might also like:
react-phone-number-input
β AReact
component for phone number input.javascript-time-ago
β An international human-readable past or future date formatter. Example:"2 days ago"
.react-time-ago
β AReact
component for international human-readable formatting of past or future dates. Example:"2 days ago"
.read-excel-file
β A simple and easy-to-use*.xlsx
file reader (client-side or server-side).write-excel-file
β A simple and easy-to-use*.xlsx
file writer (client-side or server-side).flexible-json-schema
β A simple and easy-to-use*.json
schema data validator / parser.virtual-scroller
β A universal implementation of a "virtual scroller" infinite list scrolling component: only renders the rows that fit the screen bounds.
Google's libphonenumber
is licensed under Apache 2.
Apache 2 does not require a derivative work of the software, or modifications to the original, to be distributed using the same license. Hence, this library is licensed under MIT, which is compatible with Apache 2.
The Apache license is terminated if the user sues anyone over patent infringement related to the software covered by the license. This condition is added in order to prevent patent litigations.