what does === do in js code example

Example 1: === javascript

// ===	means equal value and equal type
var x = 5

// true
x === 5

// false
x === "5"

Example 2: js !==

var x = 5;

// === 	equal value and equal type
// e.g. 1. 
x === 5 returns true

// e.g. 2.
x === "5" returns false

// !== not equal value or not equal type
// e.g. 1.
x !== 5 returns false

// e.g. 2.
x !== "5" returns true

// e.g. 3.
x !== 8 returns true