优化

schangxiang@126.com

2025-09-19 0821aa23eabe557c0d9ef5dbe6989c68be35d1fe

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# Polyfill for `Object.setPrototypeOf`
 
[![NPM Version](https://img.shields.io/npm/v/setprototypeof.svg)](https://npmjs.org/package/setprototypeof)
[![NPM Downloads](https://img.shields.io/npm/dm/setprototypeof.svg)](https://npmjs.org/package/setprototypeof)
[![js-standard-style](https://img.shields.io/badge/code%20style-standard-brightgreen.svg)](https://github.com/standard/standard)
 
A simple cross platform implementation to set the prototype of an instianted object.  Supports all modern browsers and at least back to IE8.
 
## Usage:
 
```
$ npm install --save setprototypeof
```
 
```javascript
var setPrototypeOf = require('setprototypeof')
 
var obj = {}
setPrototypeOf(obj, {
  foo: function () {
    return 'bar'
  }
})
obj.foo() // bar
```
 
TypeScript is also supported:
 
```typescript
import setPrototypeOf = require('setprototypeof')
```