What is a generator in JavaScript?

What is a generator in JavaScript?

A generator in JavaScript is a special type of function that can pause and resume its execution. It uses the function* syntax.

How do I create a generator function?

You create a generator function using the function* keyword, followed by the function name and parentheses. Inside, you use the yield keyword to pause execution.

Can you give me an example of a generator?

Sure! Here's a simple example:

function* countUpTo(max) {
  let count = 1;
  while (count <= max) {
    yield count;
    count++;
  }
}

This generator will yield numbers from 1 to the specified max.

What are the benefits of using generators?

Generators are great for managing asynchronous operations, creating iterators, and handling large data sets without blocking the main thread.