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

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 typeof window in a browser environment?

A). object

B). undefined

C). function

D). global

Which of the following can create a global variable?

A). var

B). let

C). const

D). All of the above

What keyword is used to ensure a variable is block-scoped?

A). var

B). global

C). let

D). window

What is the purpose of the global object in JavaScript?

A). To store local variables

B). To provide a namespace for global variables and functions

C). To define constants

D). To execute code in strict mode

How do you declare a global variable inside a function?

A). Using var

B). Using let

C). Using const

D). Assigning to window

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

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

A). window

B). global

C). document

D). process

What is the global object in a browser environment?

A). window

B). global

C). document

D). this

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

A). Encapsulation

B). Namespace

C). Strict mode

D). Block scoping