https://github.com/youzan/fast-uglifyjs-plugin

hight performance uglify plugin for webpack
https://github.com/youzan/fast-uglifyjs-plugin

javascript performance uglifyjs webpack

Last synced: 2 months ago
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hight performance uglify plugin for webpack

• Host: GitHub
• URL: https://github.com/youzan/fast-uglifyjs-plugin
• Owner: youzan
• Created: 2017-02-10T04:02:47.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2017-07-23T05:16:30.000Z (almost 9 years ago)
• Last Synced: 2025-10-20T04:53:35.886Z (8 months ago)
• Topics: javascript, performance, uglifyjs, webpack
• Language: JavaScript
• Homepage:
• Size: 47.9 KB
• Stars: 71
• Watchers: 11
• Forks: 13
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

          






FastUglifyJsPlugin


## Introduction

[中文文档](https://github.com/youzan/fast-uglifyjs-plugin/blob/master/README_ZH.md)

compatible with webpack 2

The uglify process of building project in production environment is very time consuming. It could take up to 70% of the build time. FastUglifyJsPlugin have multi-process and cache feature comparing to webpack's UglifyJsPlugin. Multi-process can utilize multicore cpu's caculation capability. Cache can minimize the need to complie code. Below is a set of performance testing data. FastUglifyJsPlugin has a way better performace.

|plugin|time|

|------|---------|

|webpack.optimize.UglifyJsPlugin|7.4 min|

|FastUglifyJsPlugin without cache|4.45 min|

|FastUglifyJsPlugin with cache|36 s|

test sample：29 entry,2615 modules

test environment：MacBook Pro，4 core cpu,8g memory

## Installation

```shell

npm i fast-uglifyjs-plugin --save

# or 

yarn add fast-uglifyjs-plugin

```

## Configuration

FastUglifyJsPlugin is base on webpack.optimize.UglifyJsPlugin. They have the same usage except for a few extra configuration.

```js

var FastUglifyJsPlugin = require('fast-uglifyjs-plugin');

module.exports = {

    entry: {...},

    output: {...},

    plugins: [new FastUglifyJsPlugin({

        compress: {

            warnings: false

        },

        // set debug as true to output detail cache information           

        debug: true,

        // enable cache by default to improve uglify performance. set false to turn it off

        cache: false,

        // root directory is the default cache path. it can be configured by following setting

        cacheFolder: path.resolve(__dirname, '.otherFolder'),

        // num of worker process default ,os.cpus().length

        workerNum: 2

    })]

};

```

### Licence

[MIT](https://zh.wikipedia.org/wiki/MIT%E8%A8%B1%E5%8F%AF%E8%AD%89)