https://github.com/ezekielchentnik/rollup-plugin-optimize-js

Rollup plugin to easily run your bundles through optimize-js post minifying
https://github.com/ezekielchentnik/rollup-plugin-optimize-js

iife optimize-js rollup rollup-plugin uglifyjs

Last synced: 8 months ago
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Rollup plugin to easily run your bundles through optimize-js post minifying

• Host: GitHub
• URL: https://github.com/ezekielchentnik/rollup-plugin-optimize-js
• Owner: ezekielchentnik
• License: mit
• Created: 2017-05-05T00:20:25.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2017-05-05T03:12:05.000Z (over 8 years ago)
• Last Synced: 2025-02-02T07:47:39.016Z (8 months ago)
• Topics: iife, optimize-js, rollup, rollup-plugin, uglifyjs
• Language: JavaScript
• Homepage:
• Size: 20.5 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# rollup-plugin-optimize-js

[![NPM](https://img.shields.io/npm/v/rollup-plugin-optimize-js.svg)](https://www.npmjs.com/package/rollup-plugin-optimize-js)

[![Travis](https://travis-ci.org/ezekielchentnik/rollup-plugin-optimize-js.svg?branch=master)](https://travis-ci.org/ezekielchentnik/rollup-plugin-optimize-js)

Run your [Rollup](https://github.com/rollup/rollup) bundles through [optimize-js](https://github.com/nolanlawson/optimize-js) post minifying.

This will optimize a JavaScript file for faster initial execution and parsing, by wrapping all immediately-invoked functions or likely-to-be-invoked functions in parentheses.  By default [Rollup](https://github.com/rollup/rollup) does similar optimizations, however, this will apply the optimization to all functions, and/or handle situations where minifying your bundle undos previous optimizations.

See [optimize-js](https://github.com/nolanlawson/optimize-js#javascript-api) for more info and details on when it makes sense for this optimization.

#### [Demo](https://github.com/ezekielchentnik/preact-pwa)

---

## Usage Example

Install

```bash

npm i rollup-plugin-optimize-js --save

```

Use plugin in your `rollup.config.js`, be sure to add after uglify

```js

const buble = require('rollup-plugin-buble')

const uglify = require('rollup-plugin-uglify')

const optimizeJs = require('rollup-plugin-optimize-js')

module.exports = {

  entry: 'src/index.js',

  plugins: [

    buble(),

    uglify({

      "compress": {

        "negate_iife": false, // not required, similar optimization

        // omitted for brevity

      }

    }),

    optimizeJs() // occurs after uglify

  ],

  targets: [

    {

      sourceMap: true,

      format: 'iife'

    }

  ]

}

```

### Thanks

[Nolan Lawson](https://github.com/nolanlawson) for the excellent JavaScript

### License

[MIT]

[MIT]: http://choosealicense.com/licenses/mit/