JavaScript Generators

Pause and resume function execution on demand with function* and yield.

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Generator functions are functions that can be exited and later re-entered. Their context (variable bindings) is saved across re-entrances. They are declared using function* and return an iterator with yield.

Key Takeaways: JavaScript Generators

Mastering JavaScript Generators helps you write clean and reliable JavaScript code. Follow standard conventions, test edge cases, and keep logic simple. Try running the code example below and complete the exercises to build confidence.

JavaScript Generators Code Example

JavaScript

function* idMaker() {
  let index = 1;
  while (index <= 3) {
    yield index++;
  }
}
const gen = idMaker();
console.log(gen.next().value);
console.log(gen.next().value);
console.log(gen.next().value);

Output

1
2
3

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JavaScript Generators

💡 Key Takeaways: JavaScript Generators

JavaScript Generators Code Example

Key Takeaways: JavaScript Generators