# promise学习

**Repository Path**: furfur-jiang/promise-learning

## Basic Information

- **Project Name**: promise学习
- **Description**: promise-learning
- **Primary Language**: JavaScript
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2020-12-16
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# promise学习

1.下载promises-aplus-tests
npm install -g promises-aplus-tests

2.在自定义的promise文件myPromise.js内加入以下代码

```js
Promise.defer = Promise.deferred = function (){
    let dfd = {}
    dfd.promie = new Promise((resolve,reject)=>{
        dfd.resolve= resolve
        dfd.reject = reject
    })
    return dfd
}
```

3.执行myPromise.js文件（myPromise为文件名，根据实际情况改）
promises-aplus-tests myPromise.js

4.成功结果
![在这里插入图片描述](https://img-blog.csdnimg.cn/20201216215707377.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDUyMzg2MA==,size_16,color_FFFFFF,t_70)