What are Node.js generators and how do they work?

What are Node.js generators and how do they work?

Node.js generators are functions that can be paused and resumed, allowing for asynchronous programming. They use the function* syntax.

Can you give me an example of a generator function?

Sure! Here's a simple example:

function* myGenerator() {
  yield 1;
  yield 2;
  yield 3;
}

const gen = myGenerator();
console.log(gen.next()); // { value: 1, done: false }
console.log(gen.next()); // { value: 2, done: false }

What is the difference between a generator and a regular function?

The main difference is that a generator can pause its execution and return control to the caller, while a regular function runs to completion.

How can I use generators for asynchronous programming?

You can use generators with yield to pause execution until a promise is resolved, making it easier to write asynchronous code.