does not equal in js code example

Example 1: not equal to sign in js

let a=12
if(a!=5){
  console.log(true)
}
since a is not equal to 5, it will print true

Example 2: js ===

5 =='5' // true: ignores type
5 === '5' // false: includes type

Example 3: javascript not equal

0 !== "0"
0 !== 0