if not equal js code example

Example 1: js logical operators

Javascript Logical Operators
&& Logical and
|| Logical or
! Logical not

Example 2: javascript does not equal

!= not equal 
!== not equal value OR type

Example 3: javascript if not

var isDay = false;
if (!isDay) { //Will execute if isDay is false
  console.log("It's night");
}

Example 4: js ===

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

Example 5: javascript not equal

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