Alok Ranjan Singh's blog

Javascript Placement Series (Part : 5) Discussing about Closure and important interview Question ?

Oct 23, 20222 min read

About Closure ? In Javascript, one of the most important and theoretical topic is Closure. It is one of the most misunderstood topic. What is...

Javascript Placement Series (Part 4)

Oct 9, 20223 min read

What is a Block? A Block is a compound statement which is used to group one or more statement. It groups the multiple lines and interprets as single...

Javascript Placement Series (Part 3) Advance topics like temporal dead zone , etc.

Sep 30, 20223 min read

Are let & const variable Hoisted ? The let & const keyword were introduced in ES6(2015). We all know that variable declared with var keyword can be...

Javascript Placement Series (Part 3) Advance topics like temporal dead zone , etc.

Javascript Placement Series(Part 2) Scope, Lexical Environment, Scope Chaining

Sep 28, 20223 min read

What is SCOPE ? Scope - It determines the accessibility of variable, object, function from different part of the code. For the above code variable...

Javascript Placement Series(Part 2) Scope, Lexical Environment, Scope Chaining

Javascript Placement Series (Part : 1)

Sep 26, 20222 min read

What is Hoisting ? Javascript Hoisting is a process where the interpreter appears to move the declaration of function, variable or classes to the top...

Javascript Placement Series (Part : 1)

What exactly is Call Stack in javascript?

Sep 11, 20221 min read

So basically, Call stack is a mechanism used in javascript to keep the track of multiple function call. Call Stack uses STACK which means Last In...