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1. home.cs.colorado.edu › ~kena › classesAsynchronous Programming in Javascript, Part 2

   home.cs.colorado.edu › ~kena › classes

   • How can we use promises to specify an asynchronous workflow? • We need some way to be able to specify the steps of that workflow • In our examples so far, we've only seen single step workflows; create a promise and call then() on it • But, promises can be chained together; now things get interesting!

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2. Videos

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     JavaScript Promises -- Tutorial for Beginners

     4 Oct 2022

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     11:31

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     JavaScript Promises In 10 Minutes

     17 Jan 2019

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     14:54

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     JavaScript Promises for Complete Beginners

     26 Jan 2021

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3. javascript.info › promise-basicsPromise - The Modern JavaScript Tutorial

   javascript.info › promise-basics

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   Jun 23, 2024 · A promise is a special JavaScript object that links the “producing code” and the “consuming code” together. In terms of our analogy: this is the “subscription list”.

4. www.javascripttutorial.net › es6 › javascript-promisesJavaScript Promises - JavaScript Tutorial

   www.javascripttutorial.net › es6 › javascript-promises

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   In this tutorial, you will learn about JavaScript promises and how to use them effectively in asynchronous programming.

5. raw.githubusercontent.com › modern-javascriptModern JavaScript - GitHub

   raw.githubusercontent.com › modern-javascript

   The promise of an all-JavaScript technology stack is clear: no more context switching! No longer do you have to switch mental gears from JavaScript to PHP, C#, Ruby, or Python (or any other server-side language).

6. ebooks.humanwhocodes.comUnderstanding JavaScript Promises

   ebooks.humanwhocodes.com

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   In this book, you'll learn all of the ins and outs of promises, from basics such as how to create promises all the way to understanding how async functions work with promises behind-the-scenes.

7. medium.com › @francesco › 10-exercises-to10 Exercises to Master Promises in JavaScript | Medium

   medium.com › @francesco › 10-exercises-to

   Jul 14, 2024 · Master Promises in JavaScript with 10 hands-on exercises. Learn async/await, error handling, chaining, and more for efficient asynchronous coding.

8. People also ask

   What is a promise in JavaScript?

   • To resolve this, JavaScript comes up with the concept of promises. By definition, a promise is an object that encapsulates the result of an asynchronous operation. A promise object has a state that can be one of the following: In the beginning, the state of a promise is pending, indicating that the asynchronous operation is in progress.

   JavaScript Promises - JavaScript Tutorial

   www.javascripttutorial.net/es6/javascript-promises/

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   Are JavaScript promises a good idea?

   • Promises are a hot topic in JavaScript development circles, and you should definitely get acquainted with them. They are not easy to wrap your head around; it can take a few tutorials, examples, and a decent amount of practice to comprehend them.

   JavaScript Promises: A Tutorial With Examples - Toptal

   www.toptal.com/javascript/javascript-promises

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   How to create a promise-based alternative?

   • Create a promise-based alternative. The function delay(ms) should return a promise. That promise should resolve after ms milliseconds, so that we can add .then to it, like this: Rewrite the showCircle function in the solution of the task Animated circle with callback so that it returns a promise instead of accepting a callback. The new usage:

   Promise - The Modern JavaScript Tutorial

   javascript.info/promise-basics

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   How do you use a const promise in JavaScript?

   • console.log(error); const promise = getUsers(); How it works. First, define the success variable and initialize its value to true. If the success is true, the promise in the getUsers() function is fulfilled with a user list. Otherwise, it is rejected with an error message. Second, define the onFulfilled and onRejected functions.

   JavaScript Promises - JavaScript Tutorial

   www.javascripttutorial.net/es6/javascript-promises/

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   What is the difference between a fan and a promise in JavaScript?

   • That’s a “singer”. A “consuming code” that wants the result of the “producing code” once it’s ready. Many functions may need that result. These are the “fans”. A promise is a special JavaScript object that links the “producing code” and the “consuming code” together. In terms of our analogy: this is the “subscription list”.

   Promise - The Modern JavaScript Tutorial

   javascript.info/promise-basics

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   What is a promise object?

   • A Promise object serves as a link between the executor (the “producing code” or “singer”) and the consuming functions (the “fans”), which will receive the result or error. Consuming functions can be registered (subscribed) using the methods .then and .catch. The most important, fundamental one is .then. The syntax is:

   Promise - The Modern JavaScript Tutorial

   javascript.info/promise-basics

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9. www.toptal.com › javascript › javascript-promisesJavaScript Promises: A Tutorial With Examples - Toptal

   www.toptal.com › javascript › javascript-promises

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   My aim with this tutorial is to help you understand JavaScript Promises, and nudge you to practice using them more. I will be explaining what promises are, what problems they solve, and how they work.