Why Use Promises in Angular Instead of Callbacks? In Angular development, Promises are preferred over traditional callbacks because they provide a clearer and more manageable way to handle asynchronous operations. Unlike callbacks, which can become deeply nested and hard to follow (known as “callback hell”), Promises allow developers to chain .then( ) and .Catch( ) methods, making code cleaner and easier to maintain. Promises also offer better error handling. With callbacks, error handling logic often gets duplicated or missed. Promises centralize this by allowing a single .Catch( ) block to handle any error in the chain. This makes Angular applications more reliable and easier to debug, especially when dealing with HTTP requests, data fetching, or other time-consuming operations. Common Use Cases of Promises in Angular Development Here are some real-world examples where Angular developers commonly use Promises: Fetching API data (e.g., user profiles, product listings) Form submission handling with server response Authenticating users with login/logout operations Uploading files and waiting for completion status Executing dependent asynchronous tasks in a sequence Using Promises ensures these tasks are handled smoothly, without blocking the UI, and gives users a faster, more responsive experience.