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Web front-end Promise tutorial from entry to mastery

This set of video tutorials is easy to understand and easy to understand. It dismantles the complex implementation step by step and uses a breakthrough design to explain step by step, making learning more interesting. The course content covers the practice of front-end and back-end asynchronous programming tasks, allowing you to understand Promise at a macro level. Five major parts of the course: 1. Introduction and basic use 2.Promise API 3. Several key issues in Promise 4. Customized packaging 5.async and await (the ultimate solution to asynchronous programming)

Intermediate

promise

web

getting Started

front end

proficient

43428 person learning

46class hour

03 hours 46 minutes 45 secondsTotal course duration

2022-03-29update

王林

Gold lecturer

A total of 180 courses Student180311 Lecturer rating5.3

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Course Introduction Course Outline Data Download Other Courses

You will learn：

This set of video tutorials is from the shallower to the deeper and is easy to understand. It dismantles the complex implementation step by step, uses a breakthrough design, and explains it step by step, making it more interesting to learn. The course content covers the practice of front-end and back-end asynchronous programming tasks, allowing you to understand Promise at a macro level. Five major parts of the course: 1. Introduction and basic use 2.Promise API 3. Several key issues in Promise 4. Customized packaging 5.async and await (the ultimate solution to asynchronous programming)

Web front-end Promise tutorial from entry to mastery

Chapter1 Introduction
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Section1 Promise video introduction
duration： 02 minutes 36 seconds

Section2 Introduction to Promises
duration： 05 minutes 40 seconds
Chapter2 First Experience
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Section1 First experience with Promise 01
duration： 09 minutes 54 seconds

Section2 First experience with Promise 02
duration： 03 minutes 06 seconds
Chapter3 Practical exercises
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Section1 fs read file
duration： 05 minutes 03 seconds

Section2 ajax request
duration： 05 minutes 48 seconds

Section3 Encapsulate fs reading file operation
duration： 03 minutes 47 seconds

Section4 The promisify method performs promise style conversion
duration： 03 minutes 17 seconds

Section5 Promise encapsulates AJAX requests
duration： 03 minutes 58 seconds
Chapter4 Object properties
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Section1 Introduction to object status attributes
duration： 03 minutes 48 seconds

Section2 Introduction to object result value attributes
duration： 02 minutes 22 seconds
Chapter5 work process
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Section1 Promise workflow
duration： 01 minutes 33 seconds

Section2 Promise API-constructor-then-catch
duration： 04 minutes 54 seconds

Section3 Promise.resolve method
duration： 04 minutes 21 seconds

Section4 Promise.reject method
duration： 02 minutes 45 seconds

Section5 Promise.all methods
duration： 03 minutes 33 seconds

Section6 Promise.race method
duration： 02 minutes 50 seconds
Chapter6 Promise key issues
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Section1 How to modify the state of an object
duration： 02 minutes 51 seconds

Section2 Can multiple callbacks be executed?
duration： 02 minutes 37 seconds

Section3 Issues with the order of changing status and specifying callbacks
duration： 07 minutes 04 seconds

Section4 What determines the result returned by the then method?
duration： 05 minutes 17 seconds

Section5 Chain multiple tasks
duration： 04 minutes 22 seconds

Section6 abnormal penetration
duration： 03 minutes 25 seconds

Section7 How to terminate a promise chain
duration： 02 minutes 41 seconds
Chapter7 Promise custom packaging
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Section1 Initial structure building
duration： 04 minutes 19 seconds

Section2 Resolve and regect structure construction
duration： 04 minutes 35 seconds

Section3 resolve and regect code implementation
duration： 05 minutes 59 seconds

Section4 Thtow throws exception to change state
duration： 03 minutes 48 seconds

Section5 The state of a Promise object can only be modified once
duration： 03 minutes 03 seconds

Section6 then method executes callback
duration： 05 minutes 14 seconds

Section7 Execution of asynchronous task callbacks
duration： 08 minutes 10 seconds

Section8 Specify multiple callback implementations
duration： 05 minutes 06 seconds

Section9 Synchronously modify the status then method result return
duration： 09 minutes 42 seconds

Section10 Asynchronously modify the status then method result return
duration： 12 minutes 44 seconds

Section11 then method improvement and optimization
duration： 07 minutes 45 seconds

Section12 catch method - exception penetration and value passing
duration： 10 minutes 16 seconds

Section13 resolve method encapsulation
duration： 04 minutes 36 seconds

Section14 reject method encapsulation
duration： 02 minutes 14 seconds

Section15 all method encapsulation
duration： 09 minutes 59 seconds

Section16 race method encapsulation
duration： 05 minutes 04 seconds

Section17 Asynchronous execution of then method callback
duration： 04 minutes 09 seconds

Section18 Implementation of class version
duration： 05 minutes 22 seconds
Chapter8 async function
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Section1 async function
duration： 03 minutes 56 seconds

Section2 await expression
duration： 05 minutes 00 seconds

Section3 Combining async and await in practice
duration： 05 minutes 10 seconds

Section4 async and await combined to send ajax request
duration： 03 minutes 02 seconds

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