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    6to5-loader

    3.0.0 • Public • Published

    6to5-loader

    Turn ES6 code into vanilla ES5 with no runtime required using 6to5;

    Notes: Issues with the output should be reported on the 6to5 issue tracker;

    Install

    $ npm install --save-dev 6to5-loader
    

    Usage

    import Animal from '6to5!./Animal.js';
     
    class Person extends Animal {
      constructor(arg='default') {
        this.eat = 'Happy Meal';
      }
    }
     
    export default Person;
    var Person = require('6to5!./Person.js').default;
    new Person();

    Or within the webpack config:

    module: {
        loaders: [
            { test: /\.js$/, exclude: /node_modules/, loader: '6to5-loader'}
        ]
    }

    and then import normally:

    import Person from './Person.js';

    Troubleshooting

    6to5-loader is slow!

    Make sure you are transforming as few files as possible. Because you are probably matching /\.js$/, you might be transforming the node_modules folder or other unwanted source. See the exclude option in the loaders config as documented above.

    6to5 is injecting a runtime into each file and bloating my code!

    6to5 uses a very small runtime for common functions such as _extend. By default this will be added to every file that requires it.

    You can instead require the 6to5 runtime as a separate module to avoid the duplication.

    The following configuration disables automatic per-file runtime injection in 6to5, instead bundling requiring 6to5-runtime and making all helpers use it.

    NOTE: You must run npm install 6to5-runtime --save to include this in your project.

    loaders: [
      // runtime=true tells 6to5 to expect a runtime, but we still need to bundle it.
      {test: /\.jsx?$/, exclude: /node_modules/, loader: '6to5-loader?experimental&optional=selfContained'}
    ]

    This can save significant overhead if you use 6to5 in many modules.

    Options

    See the 6to5 options

    License

    MIT © Luis Couto

    Install

    npm i 6to5-loader

    DownloadsWeekly Downloads

    55

    Version

    3.0.0

    License

    MIT

    Last publish

    Collaborators

    • sebmck
    • thejameskyle
    • couto