webpack-closure-compiler

Google Closure Compiler plugin for Webpack

WIP

Installation

npm i -D webpack-closure-compiler

Usage

Options

language_in

Specifies input language, possible values are:

• ECMASCRIPT3 (default)
• ECMASCRIPT5
• ECMASCRIPT5_STRICT
• ECMASCRIPT6
• ECMASCRIPT6_STRICT
• ECMASCRIPT6_TYPED (experimental)

language_out

Specifies output language, possible values are:

(defaults to the value of language_in)

• ECMASCRIPT3
• ECMASCRIPT5
• ECMASCRIPT5_STRICT
• ECMASCRIPT6_TYPED (experimental)

compilation_level

Specifies the compilation level, possible values are:

• WHITESPACE_ONLY
• SIMPLE
• ADVANCED

What to Watch Out for When Using ADVANCED_OPTIMIZATIONS

var path = require('path');
var ClosureCompilerPlugin = require('webpack-closure-compiler');

module.exports = {

    entry: [
        path.join(__dirname, 'app.js')
    ],
    module: {
        loaders: [
            { test: /\.js$/, exclude: /node_modules/, loaders: ['babel-loader?optional=runtime&stage=0&cacheDirectory'] }
        ]
    },
    output: {
        path: path.join(__dirname, '/'),
        filename: 'app.min.js'
    },
    plugins: [
        new ClosureCompilerPlugin({
          language_in: 'ECMASCRIPT6',
          language_out: 'ECMASCRIPT5',
          compilation_level: 'ADVANCED'
        })
    ]
};