• Stars
    star
    144
  • Rank 255,590 (Top 6 %)
  • Language
    JavaScript
  • License
    MIT License
  • Created over 12 years ago
  • Updated 3 months ago

Reviews

There are no reviews yet. Be the first to send feedback to the community and the maintainers!

Repository Details

CoffeeScript Loader

npm node tests coverage discussion size

coffee-loader

Compile CoffeeScript to JavaScript.

Getting Started

To begin, you'll need to install coffeescript and coffee-loader:

npm install --save-dev coffeescript coffee-loader

or

yarn add -D coffeescript coffee-loader

or

pnpm add -D coffeescript coffee-loader

Then add the plugin to your webpack config. For example:

file.coffee

# Assignment:
number   = 42
opposite = true

# Conditions:
number = -42 if opposite

# Functions:
square = (x) -> x * x

# Arrays:
list = [1, 2, 3, 4, 5]

# Objects:
math =
  root:   Math.sqrt
  square: square
  cube:   (x) -> x * square x

# Splats:
race = (winner, runners...) ->
  print winner, runners

# Existence:
alert "I knew it!" if elvis?

# Array comprehensions:
cubes = (math.cube num for num in list)

webpack.config.js

module.exports = {
  module: {
    rules: [
      {
        test: /\.coffee$/,
        loader: "coffee-loader",
      },
    ],
  },
};

Alternative usage:

import coffee from "coffee-loader!./file.coffee";

And run webpack via your preferred method.

Options

Type: Object Default: { bare: true }

Options for CoffeeScript. All possible options you can find here.

Documentation for the transpile option you can find here.

Note

The sourceMap option takes a value from the compiler.devtool value by default.

Note

The filename option takes a value from webpack loader API. The option value will be ignored.

webpack.config.js

module.exports = {
  module: {
    rules: [
      {
        test: /\.coffee$/,
        loader: "coffee-loader",
        options: {
          bare: false,
          transpile: {
            presets: ["@babel/env"],
          },
        },
      },
    ],
  },
};

Examples

CoffeeScript and Babel

From CoffeeScript 2 documentation:

Note

CoffeeScript 2 generates JavaScript that uses the latest, modern syntax. The runtime or browsers where you want your code to run might not support all of that syntax. In that case, we want to convert modern JavaScript into older JavaScript that will run in older versions of Node or older browsers; for example, { a } = obj into a = obj.a. This is done via transpilers like Babel, Bublé or Traceur Compiler.

You'll need to install @babel/core and @babel/preset-env and then create a configuration file:

npm install --save-dev @babel/core @babel/preset-env
echo '{ "presets": ["@babel/env"] }' > .babelrc

webpack.config.js

module.exports = {
  module: {
    rules: [
      {
        test: /\.coffee$/,
        loader: "coffee-loader",
        options: {
          transpile: {
            presets: ["@babel/env"],
          },
        },
      },
    ],
  },
};

Literate CoffeeScript

For using Literate CoffeeScript you should setup:

webpack.config.js

module.exports = {
  module: {
    rules: [
      {
        test: /\.coffee$/,
        loader: "coffee-loader",
        options: {
          literate: true,
        },
      },
    ],
  },
};

Contributing

Please take a moment to read our contributing guidelines if you haven't yet done so.

CONTRIBUTING

License

MIT

More Repositories

1

webpack-bundle-analyzer

Webpack plugin and CLI utility that represents bundle content as convenient interactive zoomable treemap
JavaScript
12,576
star
2

mini-css-extract-plugin

Lightweight CSS extraction plugin
JavaScript
4,654
star
3

awesome-webpack

A curated list of awesome Webpack resources, libraries and tools
HTML
4,588
star
4

css-loader

CSS Loader
JavaScript
4,300
star
5

extract-text-webpack-plugin

[DEPRECATED] Please use https://github.com/webpack-contrib/mini-css-extract-plugin Extracts text from a bundle into a separate file
JavaScript
4,014
star
6

sass-loader

Compiles Sass to CSS
JavaScript
3,899
star
7

postcss-loader

PostCSS loader for webpack
JavaScript
2,855
star
8

copy-webpack-plugin

Copy files and directories with webpack
JavaScript
2,836
star
9

webpack-hot-middleware

Webpack hot reloading you can attach to your own server
JavaScript
2,336
star
10

terser-webpack-plugin

Terser Plugin
JavaScript
1,939
star
11

file-loader

File Loader
JavaScript
1,861
star
12

style-loader

Style Loader
JavaScript
1,651
star
13

worker-loader

A webpack loader that registers a script as a Web Worker
JavaScript
1,455
star
14

install-webpack-plugin

Speed up development by automatically installing & saving dependencies with Webpack.
JavaScript
1,430
star
15

compression-webpack-plugin

Prepare compressed versions of assets to serve them with Content-Encoding
JavaScript
1,409
star
16

url-loader

A loader for webpack which transforms files into base64 URIs
JavaScript
1,403
star
17

uglifyjs-webpack-plugin

[deprecated] UglifyJS Plugin
JavaScript
1,382
star
18

html-loader

HTML Loader
JavaScript
1,164
star
19

thread-loader

Runs the following loaders in a worker pool
JavaScript
1,121
star
20

webpack-serve

Repository has moved:
JavaScript
1,092
star
21

eslint-loader

[DEPRECATED] A ESlint loader for webpack
JavaScript
1,057
star
22

less-loader

Compiles Less to CSS
JavaScript
956
star
23

raw-loader

A loader for webpack that allows importing files as a String
JavaScript
844
star
24

purifycss-webpack

UNMAINTAINED, use https://github.com/FullHuman/purgecss-webpack-plugin
JavaScript
772
star
25

bundle-loader

Bundle Loader
JavaScript
658
star
26

cache-loader

[DEPRECATED] Caches the result of following loaders on disk
JavaScript
638
star
27

expose-loader

Expose Loader
JavaScript
546
star
28

imports-loader

Imports Loader
JavaScript
519
star
29

stylus-loader

🎨 A stylus loader for webpack.
JavaScript
499
star
30

babel-minify-webpack-plugin

[DEPRECATED] Babel Minify Webpack Plugin
JavaScript
493
star
31

svg-inline-loader

Inline SVG loader with cleaning-up functionality
JavaScript
490
star
32

json-loader

json loader module for webpack - UNMAINTAINED
JavaScript
436
star
33

closure-webpack-plugin

Webpack Google Closure Compiler and Closure Library plugin -
JavaScript
434
star
34

stylelint-webpack-plugin

A Stylelint plugin for webpack
JavaScript
426
star
35

source-map-loader

extract sourceMappingURL comments from modules and offer it to webpack
JavaScript
362
star
36

script-loader

[deprecated] Script Loader
JavaScript
325
star
37

i18n-webpack-plugin

[DEPRECATED] Embed localization into your bundle
JavaScript
317
star
38

css-minimizer-webpack-plugin

cssnano plugin for Webpack
JavaScript
315
star
39

istanbul-instrumenter-loader

Istanbul Instrumenter Loader
JavaScript
273
star
40

grunt-webpack

integrate webpack into grunt build process
JavaScript
267
star
41

react-proxy-loader

Wraps a react component in a proxy component to enable Code Splitting.
JavaScript
259
star
42

eslint-webpack-plugin

A ESLint plugin for webpack
JavaScript
257
star
43

image-minimizer-webpack-plugin

Webpack loader and plugin to compress images using imagemin
JavaScript
235
star
44

exports-loader

Exports Loader
JavaScript
216
star
45

webpack-command

[DEPRECATED] Lightweight, modular, and opinionated webpack CLI that provides a superior experience
JavaScript
212
star
46

webpack-stylish

A stylish, optionated reporter for webpack
JavaScript
200
star
47

val-loader

val loader module for webpack
JavaScript
183
star
48

mocha-loader

Mocha Loader
JavaScript
146
star
49

null-loader

[DEPRECATED] A loader that returns an empty module (can still be used for webpack 4).
JavaScript
145
star
50

webpack-hot-client

webpack HMR Client
JavaScript
121
star
51

node-loader

node loader for native modules
JavaScript
117
star
52

transform-loader

transform loader for webpack
JavaScript
110
star
53

webpack-defaults

Defaults to be shared across webpack projects
JavaScript
108
star
54

json5-loader

[Deprecated] JSON5 loader for Webpack (can still be used for webpack 4)
JavaScript
72
star
55

jshint-loader

[DEPRECATED] jshint loader for webpack, please migrate on `eslint`
JavaScript
67
star
56

webpack-canary

Canary tooling for checking webpack dependencies against specific webpack versions
JavaScript
47
star
57

multi-loader

[DEPRECATED] A loader that splits a module into multiple modules loaded with different loaders.
JavaScript
44
star
58

webpack-log

[DEPRECATED] Please use logger API https://github.com/webpack/webpack/pull/9436
JavaScript
38
star
59

zopfli-webpack-plugin

[DEPRECATED] Prepare compressed versions of assets with node-zopfli
JavaScript
26
star
60

component-webpack-plugin

Use components with webpack - UNMAINTAINED
JavaScript
20
star
61

remark-loader

Load markdown through remark with image resolving and some react-specific features.
JavaScript
16
star
62

json-minimizer-webpack-plugin

JSON minimizer webpack plugin
JavaScript
15
star
63

gzip-loader

[DEPRECATED] gzip loader module for webpack
JavaScript
15
star
64

yaml-frontmatter-loader

[DEPRECATED] Yaml frontmatter loader
JavaScript
14
star
65

config-loader

[DEPRECATED] A loader for webpack configuration files
JavaScript
14
star
66

html-minimizer-webpack-plugin

HTML minimizer webpack plugin
JavaScript
14
star
67

organization

Applications, Standards & Documentation for webpack-contrib.
13
star
68

i18n-loader

i18n loader module for webpack - UNMAINTAINED
JavaScript
11
star
69

eslint-config-webpack

Webpack standard eslint configuration
JavaScript
10
star
70

coffee-redux-loader

coffee redux loader module for webpack - UNMAINTAINED
JavaScript
7
star
71

test-utils

webpack Loader/Plugin Test Helpers
JavaScript
6
star
72

coverjs-loader

coverjs loader module for webpack - UNMAINTAINED
JavaScript
4
star
73

circleci-node8

[DEPRECATED] Please migrate on azure pipelines. CircleCI 2.0 NodeJS 8 build container -
Dockerfile
3
star
74

restyle-loader

[DEPRECATED] Use https://github.com/danielverejan/restyle-loader
JavaScript
3
star
75

tag-versions

A commandline wrapper around omichelsen/compare-versions to compare dist-tags
JavaScript
2
star
76

circleci-node-base

CircleCI 2.0 base build container -
Dockerfile
1
star
77

babel-preset-webpack

[DEPRECATED] Webpack Organization es2015 Babel Preset - See:
JavaScript
1
star
78

circleci-node9

[DEPRECATED] Please migrate on azure pipelines. CircleCI 2.0 NodeJS 9 build container -
Dockerfile
1
star
79

circleci-node-jdk8

Deprecated, use ->
1
star
80

cli-utils

[DEPRECATED] A suite of utilities for webpack projects which expose a CLI
JavaScript
1
star