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

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

1.

The enumeration order becomes implementation dependent and non-interoperable if ___________

A. If the object inherits enumerable properties
B. The object does not have the properties present in the integer array indices
C. The delete keyword is never used
D. Object.defineProperty() is not used
Answer» B. The object does not have the properties present in the integer array indices
Discussion
2.

The var and function are __________

A. Keywords
B. Declaration statements
C. Data types
D. Prototypes
Answer» C. Data types
Discussion
3.

What is a block statement in JavaScript?

A. conditional block
B. block that contains a single statement
C. both conditional block and a single statement
D. block that combines multiple statements into a single compound statement
Answer» E.
Discussion