Q
How do you add an element to the end of an array in JavaScript?

Answer & Solution

Answer: Option A
Solution:
The push() method in JavaScript adds elements to the end of an array, expanding its length.
Related Questions on Average

How do you define a function in JavaScript using a function declaration?

A). function myFunction() { /* code */ }

B). myFunction = function() { /* code */ }

C). myFunction() { /* code */ }

D). myFunction: function() { /* code */ }

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

A). Boolean

B). Undefined

C). Null

D). Array

How can you remove the last element from an array in JavaScript?

A). Using the pop() method.

B). Using the shift() method.

C). Using the unshift() method.

D). Using the removeLast() method.

What is the purpose of using functions as values in JavaScript?

A). To define object properties

B). To store strings and numbers

C). To perform a specific task or operation

D). To represent complex data structures

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.

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 a complex data type in JavaScript?

A). Number

B). Object

C). String

D). Boolean

How do you access an array element at a specific index in JavaScript?

A). Using square brackets notation (arrayName[index])

B). Using dot notation (arrayName.elementName)

C). Using parentheses notation (arrayName(index))

D). Using curly braces notation (arrayName{index})

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