jaceyshome/es6-proxy-polyfill

Proxy polyfill based on ES3 supports IE8, Node.js, etc.

English | 中文

ES6 Proxy Polyfill

This is a polyfill for the Proxy constructor based on ES3 supports IE8 , Node.js, etc.

Refer to ECMAScript, and this has no external dependencies.

Due to the limitations of ES3, the polyfill supports just a limited number of proxy 'traps':

• apply
• construct

The Proxy.revocable method is also supported, but only for calls to the above traps.

Installation

1. Use NPM: npm install -S es6-proxy-polyfill
2. Download directly: Development Version, Production Version

Usage

1. Browser:

<script src="path/to/es6-proxy-polyfill.js" type="text/javascript"></script>
<script type="text/javascript">
    var target = function(){/* code */};
    var handler = {/* code */};
    var proxy = new Proxy(target, handler);
</script>

2. Node.js:

require('es6-proxy-polyfill');

var target = function(){/* code */};
var handler = {/* code */};
var proxy = new Proxy(target, handler);

Notice

1. In ES6, the access to Proxy object's properties will be passed to target. In order to simulate this feature, polyfill will try to copy properties from target by using Object.assign method, so it's better to load an Object.assign polyfill first;

<script src="path/to/babel-polyfill.js" type="text/javascript"></script>
<script src="path/to/es6-proxy-polyfill.js" type="text/javascript"></script>

2. The code has been tested on Node.js 0.10.48 and IE8, and it may work in other environments too;
3. The revoked Proxy object will not throw errors when it's properties are accessed.