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所在平台: Udemy |
课程主页: https://www.udemy.com/course/asynchronous-programming-in-javascript-complete-course/
课程评论:没有评论
**JavaScript 异步编程:完整课程总结** 这门 Coursera 课程专注于 JavaScript 中的异步编程,旨在帮助学习者深入理解并掌握这一关键技能,从而在 Web 开发领域脱颖而出。课程将带你从同步编程过渡到异步编程,并重点讲解 JavaScript 如何在后台处理异步任务。 **核心学习内容:** * **异步编程基础:** 理解同步与异步的区别,JavaScript 的工作原理,事件循环(event loops),调用栈(call stacks)以及 Web API 的作用。 * **回调函数 (Callbacks):** 学习使用回调函数处理异步操作,并深入探讨其优缺点,以及“回调地狱”(callback hell)的产生原因。 * **Promises:** 掌握 ES6 引入的 Promises,了解其如何作为回调函数的替代方案,包括如何处理 Promise 的解析(resolution)和拒绝(rejection),以及 Promise 链(promise chains)、Promise 化(promisification)和错误处理。 * **Async/Await:** 学习 ES7 的 Async/Await 语法糖,它如何使 Promise 代码更加优雅易读,以及如何同时处理多个 Promise 和进行错误处理。 * **实践项目:** 通过三个真实的迷你项目,将所学知识应用于实践,巩固理解并提升编码能力,例如使用回调函数、Promises 和 Async/Await 实现相同的功能,并进行对比。 **课程目标:** * 全面掌握 JavaScript 异步编程的工作原理。 * 提升在职场中的竞争力,为求职或晋升打下基础。 * 学习如何将异步编程概念应用于项目,编写更简洁、高效的代码。 * 理解 JavaScript 的底层运行机制,尤其是异步代码的执行过程。 * 熟练运用回调函数、Promises 和 Async/Await 等核心异步模式。 * 通过实践项目,将理论知识转化为实际技能。 **适合人群:** * 希望提升 JavaScript 技能的开发者。 * 寻求职业发展或晋升的 Web 开发者。 * 希望在面试中脱颖而出的 Web 开发者。 * 已有异步编程基础,希望学习其在 JavaScript 中实现的程序员。 * 希望了解真实世界编程模式的新手开发者。 * 使用 Angular, React, Vue, Svelte 等前端框架的开发者。 本课程通过易于理解的示例和详细的讲解,帮助学习者攻克 JavaScript 异步编程这一复杂但至关重要的主题。
Would you like to take your Javascript knowledge to the next level? Would you like to become a master Javascript programmer by mastering one of the most complex, but very important aspects of web development? Asynchronous programming is real world programming, and if you master it, you'll certainly stand out from your competitors! Javascript wasn't designed to be an Asynchronous language, but with just the right tweaks, you can make it Asnychronous. In the real world, everything doesn't happen one after the other. You might be stuck with a data fetch that takes a couple seconds to execute. You can't make the rest of your code wait for it to finish executing though. Asynchronous code helps you manage everything seamlessly while making sure that the data you're waiting for (in our example) is used in your code ONLY after it has been completely fetched. Sounds like magic, doesn't it? But it also sounds too complicated. Don't worry. You'll learn every single concept of Asynchronous Javascript with easy to understand over-the-shoulder examples and detailed, but interesting explanations. You'll learn all about event loops and how Javascript works behind the screen and how it executes Asynchronous code, about callbacks and their drawbacks, how promises replaced them and how Async Await made promises prettier. You'll apply all of these in 3 real world mini-projects as well. So, if you'd like to delve deep into the exciting world of Asynchronous programming, especially with Javascript as your language of choice, this course is perfect for you. What will you learn in this course? 1. By the end of this course, you'll have a thorough understanding of how Asynchronous programming works in Javascript.2. You'll learn the ins and outs of one of the major topics that can land you a job or a promotion3. You'll know how to apply those concepts in your projects and create clean code that runs faster than your peers.4. You'll learn all about event loops and how Javascript works behind the screen and how it executes Asynchronous code5. You'll learn about callbacks and how you've probably been using them in your daily programming already6. You'll learn about the pros and cons of callbacks, callback hell and why we need a replacement7. You'll learn about promises, an ES6 update, and how they replaced callbacks 8. You'll learn about handling errors in promises 9. You'll learn about making promises prettier with Async Await, an ES7 update10. You'll learn about handling errors in async await 11. You'll learn how to apply what you learn in 3 real world mini projects12. You'll learn one of the most complex topics of programming with easy to understand examples and hands-on explanationsWho is this course for? 1. Javascript developers who want to take their knowledge to the next level2. Web developers who'd like to pad their resume and get that promotion they've always wanted.3. Web developers who'd like to add "Asynchronous programming" to their resume and stand out in your job interviews. 4. Programmers who already know Asynchronous programming but would like to learn how to implement it in Javascript. 5. Fledgling developers who'd like to learn how real world programming works 6. Front end developers who are working with frameworks like Angular, React, Vue or Svelte and would like to apply Asynchronous programming concepts in their projects. How is this course designed: Module 1: Introduction - In this module, we'll look at the difference between synchronous and Asynchronous programming, how Asynchronous programming works, how Javascript works in the background, what event loops are, how call stacks execute your Javascript code, what Web APIs are and so much more!Module 2: Callback functions - In this module, let's delve deeper into Asynchronous Javascript by looking at using callback functions to make your Async codes work seamlessly, but let's also delve deeper into the pros and cons of callbacks and why we need a replacement for it. We'll end the module with a mini-project that demonstrates a real world usage of callbacks and asynchronous code. Module 3: Promises - In this module, let's take a detailed look at the ES6 update Promises, why they were needed and how they pretty much replaced calbacks. Let's also look at how we can get their resolutions and errors and display them, creating promise chains, promisification and error handling in promises. We'll end this module by creating the same mini project, but this time with promises and comparing them to callbacks. Module 4: Async Await - In this module, we'll look at Async Await, an ES7 update, and how they've made promises look pretty. We'll also look at resolving multiple promises at the same time using Async Await and error handling. We'll end this module with a mini project as well. Each of these modules will create full-fledged lessons that teach a particular Asynchronous JavaScript concept in detail with a lot of real-world over-the-shoulder examples, so you'll have a lot of fun while learning! So, what are you waiting for? Get in and get started on your journey to becoming an Asynchronous web developer today!