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JavaScript Basics I

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Questions and Answers

Which of the following is NOT a primitive data type in most programming languages?

Array (correct)

Integer

String

Character

In JavaScript, how is a single character represented since it lacks a specific char data type?

As a symbol

As an integer

As a single-character string (correct)

As a number

What type of number does JavaScript use for both integers and floats?

Character

Boolean

Number (correct)

String

What does it mean for primitive data types to be immutable?

They can't be changed or altered Signup and view all the answers

Which of the following is an example of a float?

2.5 Signup and view all the answers

What are the two main composite data types in JavaScript?

Booleans and Symbols Signup and view all the answers

Which of the following values is considered a Boolean?

true Signup and view all the answers

In programming languages, what is the role of a data type?

To describe the data a value contains Signup and view all the answers

Which composite data type in JavaScript can be updated after creation?

Object Signup and view all the answers

What does the term 'undefined' refer to in JavaScript?

A type that does not exist Signup and view all the answers