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

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

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

A). window

B). global

C). document

D). process

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

A). 1

B). 0

C). undefined

D). null

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(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

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

A). var

B). global

C). let

D). window