Javascript phone number validation

Question

I need to validate a phone number in javascript. The requirements are:

they should be 10 digits, no comma, no dashes, just the numbers, and not the

Answer 1

Code to except only numbers braces and dashes

function DoValidatePhone() {
    var frm = document.forms['editMemberForm'];                
    var stripped = frm.contact.value;
    var isGoodMatch = stripped.match(/^[0-9\s(-)]*$/);
    if (!isGoodMatch) {
        alert("The Emergency Contact number contains invalid characters." + stripped);
        return false;
    }
}