Answer & Solution
Answer: Option D
Solution:
Avoiding global scope pollution can be achieved by using local variables, IIFE, and modules.
11.
How can you avoid global scope pollution?
12.
What is the purpose of the global object in JavaScript?
13.
Which of the following can create a global variable?
14.
What keyword is used to ensure a variable is block-scoped?
15.
In Node.js, what is the global object called?
16.
Which of the following methods can help in avoiding global variables?
17.
What is the output of
typeof window in a browser environment?
18.
What is the output of
console.log(globalThis === window); in a browser environment?
19.
What happens if you declare a variable inside a function with the same name as a global variable?
20.
How can you access a global variable inside a function if it has the same name as a local variable?