--- title: "Alok Ranjan Singh (@aloksingh00) | Hashnode" description: "To be Engineer. Fronted Developer and Data Structure & Algorithm enthusiast. Read the latest articles by Alok Ranjan Singh on Hashnode." url: "https://hashnode.com/@aloksingh00" --- @aloksingh00 # Alok Ranjan Singh @aloksingh00 · Kolkata, India · Joined September 2022 To be Engineer. Fronted Developer and Data Structure & Algorithm enthusiast ### [Javascript Placement Series (Part : 5) Discussing about Closure and important interview Question ?](https://aloksingh00.hashnode.dev/javascript-placement-series-part-5-discussing-about-closure-and-important-interview-question?utm_source=hashnode&utm_medium=feed) About Closure ? In Javascript, one of the most important and theoretical topic is Closure. It is one of the most misunderstood topic. What is closure ? Closure is nothing but combination of function bundled together with the references to its sur... 2 min read · [aloksingh00.hashnode.dev](https://aloksingh00.hashnode.dev/javascript-placement-series-part-5-discussing-about-closure-and-important-interview-question?utm_source=hashnode&utm_medium=feed) [Oct 23, 2022](https://hashnode.com/posts/javascript-placement-series-part-5-discussing-about-closure-and-important-interview-question/635502c364feb483c4d226a8) ### [Javascript Placement Series (Part 4)](https://aloksingh00.hashnode.dev/javascript-placement-series-part-4?utm_source=hashnode&utm_medium=feed) Javascript Myths and Explaining important topic like Lexical scope block and block scope what is shadowing. Why let and const are blocked scope 3 min read · [aloksingh00.hashnode.dev](https://aloksingh00.hashnode.dev/javascript-placement-series-part-4?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/javascript-placement-series-part-4/6342874fdaf8c598fc08f1bd) [Oct 9, 2022](https://hashnode.com/posts/javascript-placement-series-part-4/6342874fdaf8c598fc08f1bd) ### [Javascript Placement Series (Part 3) Advance topics like temporal dead zone , etc.](https://aloksingh00.hashnode.dev/javascript-placement-series-part-3-advance-topics-like-temporal-dead-zone-etc?utm_source=hashnode&utm_medium=feed) 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 hoisted. But are let & const variable also hoisted, the answer is yes. But they work little different ... 3 min read · [aloksingh00.hashnode.dev](https://aloksingh00.hashnode.dev/javascript-placement-series-part-3-advance-topics-like-temporal-dead-zone-etc?utm_source=hashnode&utm_medium=feed) [Sep 30, 2022](https://hashnode.com/posts/javascript-placement-series-part-3-advance-topics-like-temporal-dead-zone-etc/6337401effb177a659cc524a) ### [Javascript Placement Series(Part 2) Scope, Lexical Environment, Scope Chaining](https://aloksingh00.hashnode.dev/javascript-placement-seriespart-2-scope-lexical-environment-scope-chaining?utm_source=hashnode&utm_medium=feed) What is SCOPE ? Scope - It determines the accessibility of variable, object, function from different part of the code. For the above code variable b is within the scope of the function a( ). So basically there are two type of scopes 1 : Global sc... 3 min read · [aloksingh00.hashnode.dev](https://aloksingh00.hashnode.dev/javascript-placement-seriespart-2-scope-lexical-environment-scope-chaining?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/javascript-placement-seriespart-2-scope-lexical-environment-scope-chaining/6334a7b541ad82ff8b80d55d) [Sep 28, 2022](https://hashnode.com/posts/javascript-placement-seriespart-2-scope-lexical-environment-scope-chaining/6334a7b541ad82ff8b80d55d) ### [Javascript Placement Series (Part : 1)](https://aloksingh00.hashnode.dev/javascript-placement-series-part-1?utm_source=hashnode&utm_medium=feed) What is Hoisting ? Javascript Hoisting is a process where the interpreter appears to move the declaration of function, variable or classes to the top of there scope prior to the execution of code. Basically it means that you can use the functions or ... 2 min read · [aloksingh00.hashnode.dev](https://aloksingh00.hashnode.dev/javascript-placement-series-part-1?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/javascript-placement-series-part-1/63319c81fef0c33425208002) [Sep 26, 2022](https://hashnode.com/posts/javascript-placement-series-part-1/63319c81fef0c33425208002)