A grunt plugin for Google's Traceur-Compile, a lib to compile ES6 JavaScript into ES5 JavaScript.
npm install grunt-traceur_published the 0.5.0 release to npmjs.org_
> A grunt plugin for Google's Traceur-Compile, a lib to compile ES6 JavaScript into ES5 JavaScript.
~0.4.0If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:
``shell`
npm install grunt-traceur --save-dev
One the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:
`js`
grunt.loadNpmTasks('grunt-traceur');
to the data object passed into grunt.initConfig().`js
grunt.initConfig({
traceur: {
options: {
// traceur options here
experimental: true,
// module naming options,
moduleNaming: {
stripPrefix: "src/es6",
addPrefix: "com/mycompany/project"
},
copyRuntime: 'src/es5'
},
custom: {
files: [{
expand: true,
cwd: 'src/es6',
src: ['*.js'],
dest: 'src/es5'
}]
},
},
})
`
Once the files have been transpiled into ES5, you can minify or concat them.$3
Any specified option will be passed through directly to traceur, thus you can specify any option that traceur supports.
Some common options:
*
- Turn on all experimental features
* blockBinding - Turn on support for let and const
* - Copies the traceur_runtime.js to the location which you specify here
* moduleNames - Generate named module (default: true)
* moduleNaming.stripPrefix - Strip the specified prefix from generated module names
* moduleNaming.addPrefix - Add the specified prefix to the generated module names (applied AFTER the moduleNaming.stripPrefix` option)