Promise

对Promise知识的一些文章整理，及其手写实现，加深自己的理解

# 我的手写Promise代码

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Promise相关API

Promise/A+
then
catch
finally
resolve
reject
all
race
any
allSettled

# 手写Promise

# Promise面试题

# 输出结果题

1. 输出执行结果

function f() {
  setTimeout(() => {
    console.log(5)
    Promise.resolve().then(() => {
      console.log(6)
    })
  })
  new Promise((resolve,reject) => {
    console.log(1)
    resolve()
  }).then(() => {
    console.log(2)
    Promise.resolve().then(() => {
      console.log(3)
    })
    setTimeout(() => {
      console.log(4)
    })
    Promise.resolve().then(() => {
      console.log(7)
    })
  })
  Promise.resolve().then(() => {
    console.log(8)
  })
}

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编辑

#Promise #手写

上次更新: 2021/10/19, 18:59:07

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