https://github.com/cancerberosgx/minify-fast

Minify a js file very fast by just removing spaces
https://github.com/cancerberosgx/minify-fast

Last synced: about 1 month ago
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Minify a js file very fast by just removing spaces

• Host: GitHub
• URL: https://github.com/cancerberosgx/minify-fast
• Owner: cancerberoSgx
• License: mit
• Created: 2018-06-26T08:23:06.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-07-14T15:22:04.000Z (over 6 years ago)
• Last Synced: 2024-10-11T04:50:16.474Z (2 months ago)
• Language: TypeScript
• Size: 19.5 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Minify a JavaScript file very fast

This package focus on providing space / comment removal from JavaScript code as fast as possible. No mangling, just spaces / comment removal

For those special situations in which a very large file full minification using uglify takes too long to execute. 

When you need an intermediate stage before real production and very large files are involved...

Technologies used: By default it will use [esprima](http://esprima.readthedocs.io) parser and [escodegen](https://github.com/estools/estraverse) code generatorbut it can be configured to use [acorn](https://github.com/acornjs/acorn/) parser and [astring](https://github.com/davidbonnet/astring) code generator  . 

# CLI 

```sh

npm install -g minify-fast

minify-fast --input src/**/*.js # will modify files in src !

minify-fast --input src/**/*.js --output out

# minify two input globs but this time using acorn parser and dump some debug information: 

minify-fast --input dist/**/*.js --input dist-umd/**/*.js --parser acorn --generator astring --debug

```

## node.js API

```sh

npm install --save-dev minify-fast

```

```js

var minify = require('minify-fast')

// Or if using ES modules / TypeScript

// import minify from 'minify-fast'

const code = `

  let a     = [1  , 2,    3];

  const b = a.map (n => n * 2) /*hello */

  console.log(a, b) 

`

console.log(minify({code}))

// let a=[1,2,3];const b=a.map(n=>n*2);console.log(a,b)

```

By default it will use [acorn](https://github.com/acornjs/acorn/) parser and [astring](https://github.com/davidbonnet/astring) code generator but it can be configured to use [esprima] parser and [escodegen](https://github.com/estools/estraverse) code generator. 

# TODO

 * error handling

 * generator astring not minifying

 * support typescript : https://github.com/eslint/typescript-eslint-parser ? mmm we still need a generator right ?

 * another parser : https://github.com/eslint/espree

 * input CLI verification for --parser, --generator, etc and fail OK

 * benchmarks to compare parsers and generators and against real minifiers like google-closure-compiler / uglify

 * sourcemaps ? test if / how affects performance

 * preserve comments ? 

 * jsx ?