What is the global object in a browser environment?

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

A). window

B). global

C). document

D). process

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

A). let

B). var

C). const

D). function

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

How do you declare a global variable inside a function?

A). Using var

B). Using let

C). Using const

D). Assigning to window

Which of the following can create a global variable?

A). var

B). let

C). const

D). All of the above

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

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

A). Using functions to encapsulate code

B). Using objects to namespace code

C). Using ES6 modules

D). All of the above

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

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

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