Modern JavaScript from the Beginning - Second Edition - Section Introduction-Iterators, Generators and Data Structures

What is the primary purpose of an iterator in JavaScript?

• To perform mathematical operations

• To store data in key-value pairs

• To define a sequence of values

• To manage asynchronous code

How are generators related to iterators in JavaScript?

• Generators store data in arrays

• Generators are used for error handling

• Generators are a type of iterator

• Generators are used to create iterators

Which of the following is a built-in data structure in JavaScript?

• Set

• Stack

• Linked List

• Queue

What is a characteristic of custom data structures like stacks and queues?

• They are built-in JavaScript structures

• They are used for styling web pages

• They are only used in server-side programming

• They require custom classes to be instantiated

Why was the topic of symbols not covered earlier in the course?

• They are not used in JavaScript

• They are only used in HTML

• They are deprecated in modern JavaScript

• They are more complex than other primitive types