1-1 Course Introduction

1-2 Function objects and instance objects

1-3 2 types of callback functions (synchronous and asynchronous)

1-4 Common built-in errors

1-5 Error handling (catch and throw)

2-1 Understanding Promise

2-2 Promise status and status changes

2-3 The basic running process of Promise

2-4 Basic use of Promise

2-5 Why use Promise?

2-6 API description of Promise

2-7 Promise API usage

2-8 API usage of Promise-2

2-9 Several key issues with Promise-1

2-10 Several key issues with Promise-2

2-11 Several key issues with Promise-3

2-12 Several key issues with Promise-4

2-13 Several key issues with Promise-5

3-1 Custom Promise - Description

3-2 Custom Promise_overall structure

3-3 Custom Promise - Constructor Implementation-1

3-4 Custom Promise - Constructor Implementation-2

3-5 Custom Promise_constructor testing and improvement

3-6 Custom Promise_then method implementation-1

3-7 Custom Promise_then method implementation-2

3-8 Custom Promise_then method implementation-3

3-9 Custom Promise_then method testing and improvement

3-10 Custom Promise_then method implementation (second pass)

3-11 Customize the resolve and reject methods of Promise_Promise

3-12 Customize the all method of Promise_Promise

3-13 Promise's race method

3-14 Improve all and race methods

3-15 Promise's resolveDela and rejectDelay methods

3-16 class version

4-1 async and await

5-1 JS asynchronous macro queue and micro queue

6-1 Interview questions-1

6-2 Interview questions-2

6-3 Interview questions-3

6-4 Interview questions-4