Difference between == and === in JavaScript

== converts the operands to the same type before checking for quality.

== checks only for same value.

Example

	0 == false // true
	2 == "2" // true
	null == undefined // true

view raw gistfile1.js hosted with ❤ by GitHub

=== does not converts the operands to the same type before checking for quality.

=== checks for same value + same type. 

Example

	0 === false // false
	2 === "2" // false
	null === undefined // false

view raw gistfile1.js hosted with ❤ by GitHub

Link of Examples
== Comparison Operator
=== Comparison Operator