Q
What is the purpose of the global object in JavaScript?

Answer & Solution

Answer: Option B
Solution:
The global object serves as a namespace for all global variables and functions, helping to avoid naming conflicts.
Related Questions on Average

Which keyword is used to declare a variable in the global scope?

A). let

B). var

C). const

D). function

Can a global variable be accessed inside a function?

A). Yes

B). No

C). Only if passed as a parameter

D). Only if defined with var

Which of the following can create a global variable?

A). var

B). let

C). const

D). All of the above

How can you avoid global scope pollution?

A). By using local variables

B). By using IIFE (Immediately Invoked Function Expressions)

C). By using modules

D). All of the above

What is the global object in a browser environment?

A). window

B). global

C). document

D). this

What is the output of console.log(window.globalLet); if let globalLet = 'Hello'; is declared in the global scope?

A). Hello

B). undefined

C). error

D). null

What is the output of typeof window in a browser environment?

A). object

B). undefined

C). function

D). global

What is the output of console.log(globalThis === window); in a browser environment?

A). 1

B). 0

C). undefined

D). null

What is the output of console.log(globalVar); if globalVar = 'Hello'; is assigned inside a function without using var, let, or const?

A). Hello

B). undefined

C). error

D). null

In Node.js, what is the global object called?

A). window

B). global

C). document

D). process