https://github.com/browserify/vm-browserify

require('vm') like in node but for the browser
https://github.com/browserify/vm-browserify

Last synced: 4 months ago
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require('vm') like in node but for the browser

• Host: GitHub
• URL: https://github.com/browserify/vm-browserify
• Owner: browserify
• License: mit
• Created: 2012-02-27T06:36:15.000Z (over 12 years ago)
• Default Branch: master
• Last Pushed: 2020-06-05T23:27:19.000Z (about 4 years ago)
• Last Synced: 2024-01-16T22:32:17.886Z (6 months ago)
• Language: JavaScript
• Homepage:
• Size: 39.1 KB
• Stars: 189
• Watchers: 5
• Forks: 42
• Open Issues: 14
• Metadata Files:
  • Readme: readme.markdown
  • Changelog: CHANGELOG.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE
  • Security: security.md

Lists

• awesome-javascript-interpreters - browserify/vm-browserify - browserify) |  | substack/vm-browserify (javascript interpreters / old projects)

README

        
# vm-browserify

emulate node's vm module for the browser

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

# example

Just write some client-side javascript:

``` js

var vm = require('vm');

window.addEventListener('load', function () {

    var res = vm.runInNewContext('a + 5', { a : 100 });

    document.querySelector('#res').textContent = res;

});

```

compile it with [browserify](http://github.com/substack/node-browserify):

```

browserify entry.js -o bundle.js

```

then whip up some html:

``` html

  

    

  

  

    result = 

  

```

and when you load the page you should see:

```

result = 105

```

# methods

## vm.runInNewContext(code, context={})

Evaluate some `code` in a new iframe with a `context`.

Contexts are like wrapping your code in a `with()` except slightly less terrible

because the code is sandboxed into a new iframe.

# install

This module is depended upon by browserify, so you should just be able to

`require('vm')` and it will just work. However if you want to use this module

directly you can install it with [npm](http://npmjs.org):

```

npm install vm-browserify

```

# license

MIT