JavaScript Program to Find whether a Number is Even or Odd with Source Code
Use modulus (%). It gives you the remainder of the two numbers you are dividing.Here in our Program, if you mod any number x by 2, you get either 0 or 1 or -1. 0 would mean it's even. Anything else would mean it's odd. This is the simple funda.
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<h2 style="text-align: center; color: white; background-color: #FA2B6D"> JavaScript to find Odd or Even number! </h2>
<label> Enter Number </label> <br>
<input type="number" name="" id="evenOdd" onkeyup="isCheck()">
<span id="showMssg" style="color: #342BFA;"> </span>
</br><br>
<label> Enter Number </label> <br>
<input type="number" name="" id="evenOdds" onkeyup="isChecks()">
<span id="showMssgs" style="color: #FA2B44;"> </span>
<script>
function isCheck(){
var num = document.getElementById('evenOdd').value;
// alert(num);
if((num%2) == 0){
document.getElementById('showMssg').innerHTML = "Hurray! Number "+num+" is an even number";
}
else{
document.getElementById('showMssg').innerHTML = "Oo No! "+num+" is not an even number";
}
if(num === ""){
document.getElementById('showMssg').innerHTML = "";
}
}
function isChecks(){
var num = document.getElementById('evenOdds').value;
// alert(num);
if((num%2) == 0){
document.getElementById('showMssgs').innerHTML = "Hurray! Number "+num+" is an even number";
}
else{
document.getElementById('showMssgs').innerHTML = "Oo No! "+num+" is not an even number";
}
if(num === ""){
document.getElementById('showMssgs').innerHTML = "";
}
}
</script>
</body>
</html>
You can check below here by simply enter any number to Find whether a Number is Even or Odd in JavaScript
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