In JavaScript what is Difference between var, let and Const

Question

Var x;
let x;
const x;
What is Difference between this above keywords

Answer 1

var declarations are globally scoped or function scoped while let and const are block scoped. var variables can be updated and re-declared within its scope; let variables can be updated but not re-declared; const variables can neither be updated nor re-declared. They are all hoisted to the top of their scope.

Better understanding with examples =>https://codeburst.io/learn-let-var-and-const-in-easiest-way-with-guarantee-e6ecf551018a

Answer 2

mahesh Sherekar (Kulkarni)

In short

https://www.sololearn.com/post/823968/?ref=app

Answer 3

A nice topic about this:
https://www.freecodecamp.org/news/var-let-and-const-whats-the-difference/