Promise

A promise in TypeScript is an object representing the eventual completion or failure of an asynchronous operation. It is a placeholder for a value that may be available now, or in the future, or never.

Syntax:

const myPromise = new Promise((resolve, reject) => {
  // Asynchronous operation or task
  // If successful, call resolve with the result
  // If there's an error, call reject with the reason
});

A promise is typically created using the Promise constructor, which takes a callback function with resolve and reject parameters. The asynchronous operation is performed inside this callback.

In TypeScript, you can use async and await with a Promise to simplify asynchronous code and make it more readable.