Which statement is true about global variables in JavaScript?

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

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

A). 1

B). 0

C). undefined

D). null

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

A). Encapsulation

B). Namespace

C). Strict mode

D). Block scoping

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

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

A). window

B). global

C). document

D). process

Which of the following can create a global variable?

A). var

B). let

C). const

D). All of the above

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 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 is the output of typeof window in a browser environment?

A). object

B). undefined

C). function

D). global

What happens if you declare a variable without var, let, or const inside a function?

A). It becomes a global variable

B). It becomes a local variable

C). It throws an error

D). It becomes a constant