Name: Scope of a variable in JavaScript
Uploaded: 2016-02-05T17:28:43.000Z
Duration: 9 min 6 s
Description: Episode 2 of Learn JavaScript, a 14-part video series by Neeraj Singh.

http://jsbin.com/mahalaqupu/3/edit?html,js,console,output

http://jsbin.com/teqamulaxi/1/edit?html,js,console,output

http://jsbin.com/litisiqezo/1/edit?html,js,console,output

Scope of a variable in JavaScript

In JavaScript “function declaration” behaves differently from “function expression”.

http://jsbin.com/hamige/6/edit?html,js,console,output

http://jsbin.com/hamige/7/edit?html,js,console,output

Hoisting is not a real thing

Lexical scoping in JavaScript

Cheating Lexical scoping in JavaScript

http://jsbin.com/silorahisa/3/edit?html,js,console,output

http://jsbin.com/hemezipive/1/edit?html,js,console,output

Immediately-Invoked Function Expression (IIFE)

Immediately invoked function expression

http://jsbin.com/dutuxirazi/1/edit?html,js,console,output

http://jsbin.com/munofehuhe/1/edit?html,js,console,output

http://jsbin.com/munofehuhe/2/edit?html,js,console,output

http://jsbin.com/munofehuhe/3/edit?html,js,console,output

Understanding this in JavaScript

http://jsbin.com/xatayiyoku/1/edit?html,js,console,output

http://jsbin.com/lizewukini/2/edit?html,js,console,output

http://jsbin.com/lizewukini/3/edit?html,js,console,output

http://jsbin.com/lizewukini/4/edit?html,js,console,output

Understanding (this) part II

http://jsbin.com/nixidejote/1/edit?html,js,console,output

http://jsbin.com/nuxedosoge/1/edit?html,js,console,output

http://jsbin.com/zarocecese/1/edit?html,js,console,output

Understanding (this) part III

http://jsbin.com/saleyobiku/2/edit?html,js,console,output

http://jsbin.com/saleyobiku/3/edit?html,js,console,output

http://jsbin.com/saleyobiku/4/edit?html,js,console,output

http://jsbin.com/saleyobiku/5/edit?html,js,console,output

Understanding (this) part IV

http://jsbin.com/deyeniveto/1/edit?html,js,console,output

How closure works in JavaScript Part I

http://jsbin.com/soyefomuxe/1/edit?html,js,console,output

http://jsbin.com/soyefomuxe/2/edit?html,js,console,output

http://jsbin.com/soyefomuxe/3/edit?html,js,console,output

How closure works in JavaScript Part II

http://jsbin.com/ziqevoqedi/1/edit?html,js,console,output