What is an object in JavaScript?

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

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

What does the push() method do when used with an array in JavaScript?

A). Removes the last element from the array.

B). Adds elements to the end of the array.

C). Adds elements to the beginning of the array.

D). Sorts the elements in the array.

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 result of typeof [] in JavaScript?

A). object

B). array

C). list

D). string

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 data type represents a collection of values in JavaScript?

A). Object

B). Array

C). String

D). Number

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