JavaScript Generators

What are Generators?

Generators are functions that can pause and resume. They yield values one at a time.

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

const gen = numberGenerator();
gen.next(); // { value: 1, done: false }
gen.next(); // { value: 2, done: false }
gen.next(); // { value: 3, done: true }

Key Takeaway

Generators yield values lazily. Use for infinite sequences or memory-efficient iteration. Advanced feature for specific use cases.