Phone number validation using regular expression

Phone number validation using regular expression

Explain phone number validation using regular expression in JavaScript.

View Answers

February 23, 2011 at 5:45 PM

phone = phone.replace(/[^0-9]/g, '');
if(phone.length != 10) { 
   alert("not 10 digits");
} else {
  alert("yep, its 10 digits");
}

February 26, 2011 at 11:41 AM

function confirm1() {
var PhoneNo=document.getElementById("<%=txtPhoneNo.ClientID %>");

var PhoneNoExp = /^[0-9]+$/;

              if (!PhoneNo.value == "") 
            {

              if (!PhoneNo.value.match(PhoneNoExp)) 
              {
                alert("Only numbers are allowed for Phone No \n");
                PhoneNo.focus();
                return false;
              }   
            }

}









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