Javascript Interview Questions ( Closures ) - Lexical Scope, Output based Questions, Polyfills

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Javascript Interview Questions on closures will be discussed in this video including topics like Lexical Scope, Scope Chain, Output based Questions, Once and Memoize Polyfills, etc.

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00:00 Intro
00:33 What is Lexical Scope?
02:22 A great oppertunity for you!
03:38 Lexical Scope - Interview Question
04:52 What is Closure?
05:43 Example of Closures
06:56 Why Closure?
08:19 Closure Scope Chain
11:12 Question 1 - What will it print ?
13:09 Question 2 - Write a function for this
15:28 Question 3 - Time Optimisation with Closures
18:07 Question 4 - setTimeout + block scope with Closures
23:07 Question 5 - Create a private counter
25:48 Question 6 - What is Module Pattern?
27:31 Question 7 - Make this run only once
30:14 Question 8 - Once Polyfill Implementation
34:02 Question 9 - Memoise/Caching Implementation
39:37 Question 10 - Closure vs Scope
40:22 Written Article for this video

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