validate phone number in javascript code example
Example 1: mobile number validation in javascript
<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<form method="post" action="">
Email:<input type="text" id="number" onkeyup="validation()">
</form>
</body>
<script type="text/javascript">
function validation(){
var number=document.getElementById("number").value;
var numberpattern=/^\+?([0-9]{2})\)?[-. ]?([0-9]{4})[-. ]?([0-9]{4})$/;
if(numberpattern.test(number))
{
document.getElementById("number").style.backgroundColor='yellow';
}
else
{
document.getElementById("number").style.backgroundColor='red';
}
}
</script>
</html>
Example 2: javascript phone number input
function phonenumber(inputtxt)
{
var phoneno = /^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/;
if((inputtxt.value.match(phoneno))
{
return true;
}
else
{
alert("message");
return false;
}
}
Example 3: js validate phone number
/^[\+]?[(]?[0-9]{3}[)]?[-\s\.]?[0-9]{3}[-\s\.]?[0-9]{4,6}$/im