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

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

A). Encapsulation

B). Namespace

C). Strict mode

D). Block scoping

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

A). let

B). var

C). const

D). function

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

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

Can global variables lead to name collisions in large codebases?

A). Yes

B). No

C). Only if not managed properly

D). Only 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

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

A). var

B). global

C). let

D). window