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Phone number validation using regular expression
2 Answer(s)      3 years and 8 months ago
Posted in : JavaScript Questions


Explain phone number validation using regular expression in JavaScript.


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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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