What is the global object in a browser environment?

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

Which of the following can be used to prevent accidental modification of global variables?

A). Encapsulation

B). Namespace

C). Strict mode

D). Block scoping

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

A). window

B). global

C). document

D). process

What happens if you declare a variable inside a function with the same name as a global variable?

A). It creates a new local variable

B). It throws an error

C). It modifies the global variable

D). It assigns the global variable to null

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

A). 1

B). 0

C). undefined

D). null

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

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(globalVar); if globalVar = 'Hello'; is assigned inside a function without using var, let, or const?

A). Hello

B). undefined

C). error

D). null