Explore topic-wise MCQs in JavaScript Questions & Answers JavaScript Extensions.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your JavaScript Questions & Answers JavaScript Extensions knowledge and support exam preparation. Choose a topic below to get started.

1.

Which method of the iterable object returns an iterator object for the collection?

A. iterator()
B. _iterator_()
C. _iteration_()
D. _return_iterator_()
Answer» C. _iteration_()
Discussion
2.

Which exception does the Iterators throw from their next() method when there are no more values to iterate, that work on finite collections?

A. Exit Iteration
B. Abort Iteration
C. Abort
D. Stop Iteration
Answer» E.
Discussion
3.

The let keyword cannot be used ___________

A. as a substitute of var
B. as a block statement to define new variables
C. to define variables that are scoped to a single expression
D. in a else if loop, as a substitute for var
Answer» E.
Discussion