javascript if number is odd 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: sum of odd numbers in an array javascript

///sum of odd numbers in an array javascript without loop
var numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12];

var evenNumbers = numbers.filter(function(item) {
   return (item % 2 == 0);
});

console.log(evenNumbers);

Example 4: number is even or odd fucntion in javascript

<!DOCTYPE html>
<html>
<body>
<script>
   var num = 5;
   document.write("Number = "+num+"<br>");
   if(num % 2 == 0) {
      document.write('Number is even!');
   } else {
      document.write('Number is odd!');
   }
</script>
</body>
</html>