What are JavaScript promises and how do they work?
An example of an AI chatbot conversation about JavaScript promises and their functionality.
What are JavaScript promises and how do they work?
JavaScript promises are objects that represent the eventual completion or failure of an asynchronous operation. They allow you to handle asynchronous code more effectively.
Can you explain the different states of a promise?
Sure! A promise can be in one of three states: pending, fulfilled, or rejected. Pending means the operation is still ongoing, fulfilled means it completed successfully, and rejected means it failed.
How do I create a promise in JavaScript?
You can create a promise using the Promise constructor. For example: let myPromise = new Promise((resolve, reject) => { /* async code */ });.
What is the difference between .then() and .catch()?
.then() is used to handle fulfilled promises, while .catch() is used to handle rejected promises. They help manage the outcomes of the promise.
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