Promises

A Promise in programming is like a contract for an upcoming task. It represents an operation that will complete in the future—either successfully or with an error. When you create a Promise, you're saying "I'll give you a result later." You can then attach handlers to respond once the task finishes, without waiting around. This allows for efficient, asynchronous code, meaning multiple tasks can run independently without blocking the program. Promises make complex operations, like fetching data from the internet, more manageable by handling success and failure in a clear, organized way.