I'm trying to validate my phone address text field. Can anyone provide me a simple regex to either validate for numeric digits only or a specific 8 digit regex?

Much thanks!

$('#phone').on('input', function() {
var input = $( this );
var regex = /* regex needed here */
var is_phone = regex.test(input.val());
if (is_phone){input.removeClass("invalid").addClass("valid");}
else {input.removeClass("valid").addClass("invalid");}
});

I'm trying to validate my phone address text field. Can anyone provide me a simple regex to either validate for numeric digits only or a specific 8 digit regex?

Much thanks!

$('#phone').on('input', function() {
var input = $( this );
var regex = /* regex needed here */
var is_phone = regex.test(input.val());
if (is_phone){input.removeClass("invalid").addClass("valid");}
else {input.removeClass("valid").addClass("invalid");}
});

• javascript
• html
• regex

• There are literally thousands of examples out there. The pattern is simple: ^\d{8}$ – Terry Commented May 9, 2016 at 11:08

1 Answer 1

It will allow 0-9 numbers and only 8 digits. Try this:

var regex = '/^[0-9]{1,8}$/'; // if you want min 1 and max 8 numbers

var regex = '/^[0-9]{8}$/'; // if you want exact 8 numbers