tc39/proposal-cancelable-promises

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tc39/proposal-cancelable-promises

tc39

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Former home of the now-withdrawn cancelable promises proposal for JavaScript

This proposal has been withdrawn

This proposal has been withdrawn by its champion and is no longer active in the TC39 process. For reference to previous documentation and specification work, see the Git commit history.

proposals

Tracking ECMAScript Proposals

ecma262

Status, process, and documents for ECMA-262

proposal-pipeline-operator

A proposal for adding a useful pipe operator to JavaScript.

proposal-pattern-matching

Pattern matching syntax for ECMAScript

proposal-optional-chaining

proposal-type-annotations

ECMAScript proposal for type syntax that is erased - Stage 1

proposal-signals

A proposal to add signals to JavaScript.

proposal-temporal

Provides standard objects and functions for working with dates and times.

proposal-observable

Observables for ECMAScript

proposal-decorators

Decorators for ES6 classes

proposal-record-tuple

ECMAScript proposal for the Record and Tuple value types. | Stage 2: it will change!

test262

Official ECMAScript Conformance Test Suite

proposal-dynamic-import

import() proposal for JavaScript

proposal-bind-operator

This-Binding Syntax for ECMAScript

proposal-class-fields

Orthogonally-informed combination of public and private fields proposals

proposal-async-await

Async/await for ECMAScript

proposal-object-rest-spread

Rest/Spread Properties for ECMAScript

proposal-shadowrealm

ECMAScript Proposal, specs, and reference implementation for Realms

proposal-iterator-helpers

Methods for working with iterators in ECMAScript

proposal-nullish-coalescing

Nullish coalescing proposal x ?? y

proposal-top-level-await

top-level `await` proposal for ECMAScript (stage 4)

proposal-partial-application

Proposal to add partial application to ECMAScript

proposal-do-expressions

Proposal for `do` expressions

proposal-binary-ast

Binary AST proposal for ECMAScript

agendas

TC39 meeting agendas

proposal-built-in-modules

proposal-async-iteration

Asynchronous iteration for JavaScript

proposal-explicit-resource-management

ECMAScript Explicit Resource Management

proposal-set-methods

Proposal for new Set methods in JS

proposal-string-dedent

TC39 Proposal to remove common leading indentation from multiline template strings

proposal-operator-overloading

proposal-import-attributes

Proposal for syntax to import ES modules with assertions

proposal-async-context

Async Context for JavaScript

proposal-bigint

Arbitrary precision integers in JavaScript

ecmascript_simd

SIMD numeric type for EcmaScript

ecma402

Status, process, and documents for ECMA 402

proposal-slice-notation

proposal-change-array-by-copy

Provides additional methods on Array.prototype and TypedArray.prototype to enable changes on the array by returning a new copy of it with the change.

notes

TC39 meeting notes

proposal-class-public-fields

Stage 2 proposal for public class fields in ECMAScript

proposal-iterator.range

A proposal for ECMAScript to add a built-in Iterator.range()

proposal-decimal

Built-in exact decimal numbers for JavaScript

proposal-uuid

UUID proposal for ECMAScript (Stage 1)

proposal-module-expressions

proposal-throw-expressions

Proposal for ECMAScript 'throw' expressions

proposal-UnambiguousJavaScriptGrammar

proposal-weakrefs

proposal-array-grouping

A proposal to make grouping of array items easier

proposal-error-cause

TC39 proposal for accumulating errors

proposal-ecmascript-sharedmem

Shared memory and atomics for ECMAscript

proposal-module-declarations

JavaScript Module Declarations

proposal-first-class-protocols

a proposal to bring protocol-based interfaces to ECMAScript users

proposal-relative-indexing-method

A TC39 proposal to add an .at() method to all the basic indexable classes (Array, String, TypedArray)

proposal-global

ECMAScript Proposal, specs, and reference implementation for `global`

proposal-private-methods

Private methods and getter/setters for ES6 classes

proposal-numeric-separator

A proposal to add numeric literal separators in JavaScript.

proposal-private-fields

A Private Fields Proposal for ECMAScript

tc39.github.io

Get involved in specifying JavaScript

proposal-object-from-entries

TC39 proposal for Object.fromEntries

proposal-promise-allSettled

ECMAScript Proposal, specs, and reference implementation for Promise.allSettled

proposal-await.ops

Introduce await.all / await.race / await.allSettled / await.any to simplify the usage of Promises

proposal-regex-escaping

Proposal for investigating RegExp escaping for the ECMAScript standard

proposal-export-default-from

Proposal to add `export v from "mod";` to ECMAScript.

proposal-logical-assignment

A proposal to combine Logical Operators and Assignment Expressions

proposal-promise-finally

ECMAScript Proposal, specs, and reference implementation for Promise.prototype.finally

proposal-json-modules

Proposal to import JSON files as modules

proposal-asset-references

Proposal to ECMAScript to add first-class location references relative to a module

proposal-cancellation

Proposal for a Cancellation API for ECMAScript

proposal-promise-with-resolvers

proposal-string-replaceall

ECMAScript proposal: String.prototype.replaceAll

proposal-export-ns-from

Proposal to add `export * as ns from "mod";` to ECMAScript.

proposal-structs

JavaScript Structs: Fixed Layout Objects

proposal-ses

Draft proposal for SES (Secure EcmaScript)

proposal-intl-relative-time

`Intl.RelativeTimeFormat` specification [draft]

proposal-json-parse-with-source

Proposal for extending JSON.parse to expose input source text.

proposal-flatMap

proposal for flatten and flatMap on arrays

proposal-defer-import-eval

A proposal for introducing a way to defer evaluate of a module

ecmarkup

An HTML superset/Markdown subset source format for ECMAScript and related specifications

proposal-promise-any

ECMAScript proposal: Promise.any

proposal-optional-chaining-assignment

`a?.b = c` proposal

proposal-decorators-previous

Decorators for ECMAScript

proposal-smart-pipelines

Old archived draft proposal for smart pipelines. Go to the new Hack-pipes proposal at js-choi/proposal-hack-pipes.

proposal-array-from-async

Draft specification for a proposed Array.fromAsync method in JavaScript.

proposal-upsert

ECMAScript Proposal, specs, and reference implementation for Map.prototype.upsert

proposal-collection-methods

proposal-array-filtering

A proposal to make filtering arrays easier

proposal-ptc-syntax

Discussion and specification for an explicit syntactic opt-in for Tail Calls.

proposal-extractors

Extractors for ECMAScript

proposal-error-stacks

ECMAScript Proposal, specs, and reference implementation for Error.prototype.stack / System.getStack

proposal-intl-duration-format

how-we-work

Documentation of how TC39 operates and how to participate

proposal-Array.prototype.includes

Spec, tests, reference implementation, and docs for ESnext-track Array.prototype.includes

proposal-promise-try

ECMAScript Proposal, specs, and reference implementation for Promise.try

proposal-extensions

Extensions proposal for ECMAScript

proposal-hashbang

proposal-import-meta

import.meta proposal for JavaScript

proposal-intl-segmenter

Unicode text segmentation for ECMAScript

proposal-resizablearraybuffer

Proposal for resizable array buffers

proposal-seeded-random

Proposal for an options argument to be added to JS's Math.random() function, and some options to start it with.

eshost

A uniform wrapper around a multitude of ECMAScript hosts. CLI: https://github.com/bterlson/eshost-cli