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

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 happens if you declare a variable without var, let, or const inside a function?

A). It becomes a global variable

B). It becomes a local variable

C). It throws an error

D). It becomes a constant

What is the global object in a browser environment?

A). window

B). global

C). document

D). this

Which statement is true about global variables in JavaScript?

A). They are not accessible inside functions

B). They can be accessed and modified from any part of the code

C). They are constants

D). They can only be read, not modified

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

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

A). object

B). undefined

C). function

D). global

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 be used to prevent accidental modification of global variables?

A). Encapsulation

B). Namespace

C). Strict mode

D). Block scoping

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

A). 1

B). 0

C). undefined

D). null