Hello friends! I have created a massive list of frequently asked Javascript Interview Questions from this great repo. I would like to thank Mr.  Sudheer Jonna for creating lots of incredible interview questions repo.

So let’s start !

Q1.What is a prototype chain?

Q2.What is a first class function?

Q3.What is a first order function?

Q4.What is a higher order function?

Q5.What is a unary function?

Q6.What is a pure function?

Q7.What is the purpose of the let keyword?

Q8.What is IIFE(Immediately Invoked Function Expression)?

Q9.What is memoization?

Q10.What are classes in ES6?

Q11.What are modules?

Q12.Why do you need modules?

Q13.What is scope in JavaScript?

Q14.What is a Cookie?

Q15.What is a promise?

Q16.Why do you need a promise?

Q17.What is a callback function?

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