Which of the following methods can help in avoiding global variables?

What is the global object in a browser environment?

A). window

B). global

C). document

D). this

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

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 access a global variable inside a function if it has the same name as a local variable?

A). By using the window object

B). By using the global object

C). By using a different name for the global variable

D). By using the this keyword

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 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

What will be the output of console.log(window.myVar); if var myVar = 'Hello'; is declared outside any function?

A). Hello

B). undefined

C). error

D). null

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

A). var

B). global

C). let

D). 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