What are the differences between generator functions and regular functions?

What are the differences between generator functions and regular functions?

Generator functions are special functions that can pause execution and yield values, while regular functions run to completion.

Can you explain how the 'yield' keyword works in generator functions?

The 'yield' keyword allows a generator function to return a value and pause its execution, resuming later from that point.

Are there any performance benefits to using generator functions?

Yes, generator functions can be more memory efficient, especially when dealing with large datasets, as they yield items one at a time.

Can you give me an example of a generator function?

Sure! Here's a simple example:

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

This function generates numbers from 1 to the specified max.