input phone number code example

Example 1: how to validate mobile number in html form

<div>
  <label for="phone">Enter your phone number:</label>
<input type="tel" id="phone" name="phone"  pattern="+94[7-9]{2}-[0-9]{3}-[0-9]{4}" value="+94">
 </div>

Example 2: input type for contact no

label for="phone">Enter your phone number:</label>
<input type="tel" id="phone" name="phone" pattern="[0-9]{3}-[0-9]{2}-[0-9]{3}">

Example 3: phone number input

JS Libraries required :
======================
https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js
https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/8.4.7/js/intlTelInput.js

Inside JS File :
================
$("input").intlTelInput({
  utilsScript: "https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/8.4.6/js/utils.js"
});

Inside HTML File :
===================
<h1>International Telephone Input - BOOTSTRAP INPUT GROUP</h1>
<form>
  <div class="input-group">
    <input type="tel" class="form-control">
    <span class="input-group-addon">Tel</span>
  </div>
  <br>
  <div class="input-group">
    <input type="tel" class="form-control">
    <span class="input-group-addon">Tel</span>
  </div>
</form>

Inside Css File :
=================
body {
  margin: 20px;
}
form {
  width: 300px;
}

// workaround
.intl-tel-input {
  display: table-cell;
}
.intl-tel-input .selected-flag {
  z-index: 4;
}
.intl-tel-input .country-list {
  z-index: 5;
}
.input-group .intl-tel-input .form-control {
  border-top-left-radius: 4px;
  border-top-right-radius: 0;
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 0;
}

Example 4: phone number input with country code in html

//Author: Mohammad Arman Khan
<!-- HTML INPUT FIELD -->
<input name="phone" type="text" class="form-control mb-2 inptFielsd" id="phone"
placeholder="Phone Number" />
<!-- JAVASCRIPT CODE REQUIRED -->
<script>
    var input = document.querySelector("#phone");
    window.intlTelInput(input, {
        separateDialCode: true,
        customPlaceholder: function (
            selectedCountryPlaceholder,
            selectedCountryData
        ) {
            return "e.g. " + selectedCountryPlaceholder;
        },
    });
</script>
<!-- REQUIRED CDN  -->
 <script src="https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.8/js/intlTelInput.min.js"
        integrity="sha512-DNeDhsl+FWnx5B1EQzsayHMyP6Xl/Mg+vcnFPXGNjUZrW28hQaa1+A4qL9M+AiOMmkAhKAWYHh1a+t6qxthzUw=="
        crossorigin="anonymous"></script>
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.8/css/intlTelInput.min.css"
        integrity="sha512-yye/u0ehQsrVrfSd6biT17t39Rg9kNc+vENcCXZuMz2a+LWFGvXUnYuWUW6pbfYj1jcBb/C39UZw2ciQvwDDvg=="
        crossorigin="anonymous" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/intl-tel-input/17.0.8/js/utils.js"
        integrity="sha512-BNZ1x39RMH+UYylOW419beaGO0wqdSkO7pi1rYDYco9OL3uvXaC/GTqA5O4CVK2j4K9ZkoDNSSHVkEQKkgwdiw=="
        crossorigin="anonymous"></script>

Example 5: javascript phone number input

function phonenumber(inputtxt)
{
  var phoneno = /^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$/;
  if((inputtxt.value.match(phoneno))
        {
      return true;
        }
      else
        {
        alert("message");
        return false;
        }
}