how to validate 10 digit phone number?

Question

I need to 10 digit number validation in JS code. I've put the "Contact already exists" validation code from the databse. But I'm not recognize the 10 digit validation code. my js code:

function checkcontact() {
    var contact=document.getElementById( "UserContact" ).value;

    if(contact.length==10) {
        $.ajax({
            type: 'post',
            url: 'index.php=checkemail',
            data: {
                u_contact:contact,
            },
            success: function (response) {
                if(response=="not_exist") {
                    return true;    
                } else {
                    $( '#contact_status' ).html(response);
                }
            }
        });
    }
}

my input type from 

<input class="form-control" type="text" maxlength="10"  id="UserContact" onkeyup="checkcontact(); if (/\D/g.test(this.value)) this.value = this.value.replace(/\D/g,'')" placeholder="Contact Number Here" required/>
<span id="contact_status"></span> </div>

How to validate 10 digit number in checkcontact() function in js code ?

use a pattern of \d{10} or input type number min and max both 10 — Vinod Louis, Feb 01 '17 at 05:13
Possible duplicate of [Validate phone number using javascript](http://stackoverflow.com/questions/18375929/validate-phone-number-using-javascript) — chris85, Feb 01 '17 at 05:15

score -1 · Answer 1 · answered Feb 01 '17 at 05:18

try this,

function checkcontact(){
var contact=document.getElementById( "UserContact" ).value;

var validate = check(contact);
if(validate){
    $.ajax({
        type: 'post',
        url: 'index.php=checkemail',
        data: {
        u_contact:contact,
        },
        success: function (response) {
            if(response=="not_exist"){
                return true;    
            }
            else{
                $( '#contact_status' ).html(response);
            }
        }
    });
}
}

function check(var number){
 var reg = /^[0-9]{1,10}$/;
 var checking = reg.test(number); 

  if(checking){
    return true;
  }else{
    return false;
  }
}

score -1 · Answer 2 · edited May 23 '17 at 12:16

-1

Try this..

var val = contact
  if (/^\d{10}$/.test(val)) {
  // value is ok, use it
  } else {
  alert("Invalid number; must be ten digits")
  return false
}

Reference

edited May 23 '17 at 12:16

Community

1
1

answered Feb 01 '17 at 05:18

Minksmnm

254
3
8

score -1 · Answer 3 · answered Feb 01 '17 at 05:26

-1

Just use this to validate whether the string is only number or not

var yourValue = '123456789';
var isNumber = /^\d+$/.test(yourValue);
alert(isNumber);

answered Feb 01 '17 at 05:26

Mahbub Alam

368
2
6

score -1 · Answer 4 · answered Feb 01 '17 at 05:29

Check this code

$(function() {
  
$('#UserContact').blur(function() {
 
  var contact = $("#UserContact").val();
   
  if(contact.length==10){
    alert(contact)
    //return false;
    $.ajax({
        type: 'post',
        url: 'index.php=checkemail',
        data: {u_contact:contact},
        success: function (response) {
            if(response=="not_exist"){
                return true;    
            }
            else
            {
             $( '#contact_status').html(response);
            }
        }
    });
}

});
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<input class="form-control" type="number" maxlength="10"  id="UserContact"  placeholder="Contact Number Here" required/>
<span id="contact_status"></span> </div>

score -1 · Answer 5 · answered Feb 01 '17 at 05:35

You don't need to validate 10 digits, just bind with input type as Number. It allow only numbers as an input. As per your code when its length will be 10 so automatically it will call ajax.

<input class="form-control" type="number" maxlength="10"  id="UserContact" onkeyup="checkcontact(); if (/\D/g.test(this.value)) this.value = this.value.replace(/\D/g,'')" placeholder="Contact Number Here" required/>
      <span id="contact_status"></span>

how to validate 10 digit phone number?

5 Answers5

Check this code