understanding-promise's Introduction

understanding-promise

An easy-to-understand version of Promise/A+ implementation

结合各种“手写Promise文章”的一个符合Promise/A+规范的实现，仅供学习使用

test

yarn
yarn test

实现内容

符合Promise/A+规范的实现

构造函数包含 resolve 一个 `Thenable` 对象的处理

Promise/A+规范中并没有对Promise构造函数的要求，现有的文章基本都没有处理

其他API

Promise.prototype.catch()
Promise.race()
Promise.all()
Promise.allSettled()

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