Modern JavaScript from the Beginning - Second Edition - Iterators

The video tutorial explains iterators in JavaScript, focusing on their properties and how they work. It covers creating a basic iterator without using Symbol.iterator and demonstrates the limitations of such an approach. The tutorial then shows how to implement Symbol.iterator to make an iterator iterable, allowing it to be used with a for-of loop. The video concludes with a brief introduction to generators, which are a simpler way to create iterators.

What are iterators and what do they define?

Describe the two specific properties that an object returned by the next method has.

Explain the significance of the done property in the context of iterators.

How does the next method determine if the iteration is complete?

What is the purpose of the symbol dot iterator in JavaScript?

What is the difference between an iterator and an iterable in JavaScript?

What are generators in JavaScript and how do they relate to iterators?