Q
What is an object in JavaScript?

Answer & Solution

Answer: Option B
Solution:
An object in JavaScript is a collection of key-value pairs where keys are unique identifiers and values can be of any data type.
Related Questions on Average

What is the return statement used for in a function?

A). To stop the execution of the function

B). To specify the function's name

C). To return a value from the function

D). To define object properties

How do you call a function in JavaScript?

A). Using the execute() method

B). Using the call() method

C). Using the run() method

D). By using the function name followed by parentheses

How do you access a property of an object in JavaScript?

A). Using dot notation (objectName.propertyName)

B). Using square brackets (objectName['propertyName'])

C). Both A and B

D). Neither A nor B

What is the purpose of using arrays in JavaScript?

A). To store a single value

B). To store a collection of values

C). To define object properties

D). To create conditional statements

What is a function in JavaScript?

A). A variable

B). A loop

C). A block of code that performs a specific task

D). An object

What is the purpose of using the length property with arrays in JavaScript?

A). To access the last element of the array.

B). To add elements to the array.

C). To determine the number of elements in the array.

D). To access the first element of the array.

What is the purpose of parameters in a function?

A). To store values

B). To specify the function name

C). To receive inputs and data

D). To create loops

What is a complex data type in JavaScript?

A). Number

B). Object

C). String

D). Boolean

Which of the following statements accurately describes an object in JavaScript?

A). Objects are ordered collections of elements.

B). Objects are collections of key-value pairs.

C). Objects are sequences of characters.

D). Objects are single values.

Which of the following represents a complex data type in JavaScript?

A). Boolean

B). Undefined

C). Null

D). Array