What are Promises

Promises are a fundamental feature in JavaScript that represent the eventual completion (or failure) of an asynchronous operation and its resulting value. A Promise may be in one of three states: pending, fulfilled, or rejected. This allows for more manageable handling of asynchronous tasks, enabling developers to write cleaner and more understandable code.

Here's a basic example of how to use Promises in JavaScript:

const myPromise = new Promise((resolve, reject) => { const success = true; // Simulate success or failure if (success) { resolve("Operation was successful!"); } else { reject("Operation failed!"); } }); myPromise .then(result => { console.log(result); // Log the success message }) .catch(error => { console.error(error); // Log the error message });

Promises JavaScript asynchronous programming promise states error handling

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