https://github.com/shinnn/script-equal

Check if one JavaScript code is equivalent to another code
https://github.com/shinnn/script-equal

Last synced: 27 days ago
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Check if one JavaScript code is equivalent to another code

• Host: GitHub
• URL: https://github.com/shinnn/script-equal
• Owner: shinnn
• License: mit
• Created: 2014-11-21T06:24:22.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2014-11-21T09:59:27.000Z (almost 10 years ago)
• Last Synced: 2024-09-22T16:36:40.928Z (about 2 months ago)
• Language: JavaScript
• Size: 133 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# script-equal 

[![Build Status](https://travis-ci.org/shinnn/script-equal.svg?branch=master)](https://travis-ci.org/shinnn/script-equal)

[![Build status](https://ci.appveyor.com/api/projects/status/6y21wd4dva7cu4rw?svg=true)](https://ci.appveyor.com/project/ShinnosukeWatanabe/script-equal)

[![Coverage Status](https://img.shields.io/coveralls/shinnn/script-equal.svg)](https://coveralls.io/r/shinnn/script-equal)

[![Dependency Status](https://david-dm.org/shinnn/script-equal.svg)](https://david-dm.org/shinnn/script-equal)

[![devDependency Status](https://david-dm.org/shinnn/script-equal/dev-status.svg)](https://david-dm.org/shinnn/script-equal#info=devDependencies)

Check if one JavaScript code is equivalent to another code, using [UglifyJS]

```javascript

var scriptEqual = require('script-equal');

scriptEqual(

  'window.foo = {a: 0, b: 1};',

  'window["foo"]={\nb: 1,\rna: 0\n};'

); //=> true

scriptEqual(

  'var foo = 12',

  'var foo = 1 + 1 * 14 - 3;;;;;;;;;;;;;;;;;;;'

); //=> true

```

## Installation

[![NPM version](https://badge.fury.io/js/script-equal.svg)](https://www.npmjs.org/package/script-equal)

[Use npm.](https://www.npmjs.org/doc/cli/npm-install.html)

```

npm install script-equal

```

## API

```javascript

var scriptEqual = require('script-equal');

```

### scriptEqual(*script0*, *script1* [, *options*])

*script0*:`String` (JavaScript code)  

*script1*:`String` (JavaScript code)  

*options*: `Object` ([UglifyJS][options] options)  

Return: `Boolean`

It compresses two JavaScript string with [UglifyJS]. If the results are the same string, it returns `true`. Otherwise it returns `false`.

You can use all [UglifyJS][options] options.

```javascript

var scriptEqual = require('script-equal');

var foo = 'a = {}; a.b = 0;';

var bar = 'a = {}; a[\'b\'] = 0;';

scriptEqual(foo, bar); //=> true

scriptEqual(foo, bar, {

  compress: {properties: false}

}); //=> false

```

It throws an error when it fails to parse strings.

```javascript

scriptEqual('a = 1', '1 = a'); // Error

```

## License

Copyright (c) 2014 [Shinnosuke Watanabe](https://github.com/shinnn)

Licensed under [the MIT License](./LICENSE).

[UglifyJS]: https://github.com/mishoo/UglifyJS2

[options]: https://github.com/mishoo/UglifyJS2#api-reference