JavaScript Promises

A JavaScript Promise is an object that represents the eventual completion (or failure) of an asynchronous operation and its resulting value. Think of it like a promise to deliver a result someday — for instance, fetching data from a server. While the operation runs in the background, your code can continue working. When the data arrives, the Promise resolves successfully, allowing you to handle the result; if an error occurs, it rejects, enabling error handling. Promises help manage complex, multi-step tasks more cleanly, avoiding deeply nested code and making asynchronous processes easier to control and understand.