how to get even number in javascript code example

Example 1: js even or

function isEven(n) {
   return n % 2 == 0;
}

function isOdd(n) {
   return Math.abs(n % 2) == 1;
}

Example 2: check if number is even javascript

if ( num % 2 == 0) {
	alert('Even Number');
}else{
	alert('Odd Number');
}

Example 3: check if even or odd javascript

function evenOrOdd(num) { //for string length take string
  if (num % 2 == 0) {//and replace numm with string.length here
    return "even";
  } else {
    return "odd";
  }
}

Example 4: javascript even number

let isEven = (n) => !(n&1);