JavaScript Promises
Gain insights into JavaScript Promises to handle asynchronous events, chain multiple promises, utilize built-in methods, and master async functions with await expressions for efficient event handling.
4.6
40 Lessons
12h
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Promises are used to deal with event handling and callbacks in asynchronous programming in JavaScript, such as clicks and key presses. Promises allow developers to specify a function to execute at some later point in response to certain events. Promises may also indicate whether a certain code succeeded or failed in performing its assigned job.
In this course, you will learn how to chain different promises, which makes the code easier to understand and debug. Next, you’ll learn built-in methods to monitor and respond to multiple promises executing in parallel. Then, you will cover async functions and await expressions that are often used with promises. Finally, you’ll learn how to track promises when they are rejected without a rejection handler.
Promises are important to understand and debug the code in asynchronous programming. The concepts of JS promises help developers working with Node.js and Deno for event handling and with asynchronous JavaScript APIs.
Promises are used to deal with event handling and callbacks in asynchronous programming in JavaScript, such as clicks and key pr...Show More
WHAT YOU'LL LEARN
An in-depth understanding of JavaScript promises
An understanding of the asynchronous programming in JavaScript
Hands-on experience creating settled and unsettled promises
A working knowledge of chaining promises
Familiarity with monitoring and responding to promises executing in parallel
The ability to track unhandled rejections
An in-depth understanding of JavaScript promises
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Learning Roadmap
Certificate of Completion
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