Mobile Validation using Html, CSS & JavaScript – codejuster

Today friends we are going to make a simple mobile validation tool using HTML, CSS and JS.

Step 01 :- Create index.html file in VS code and put html code in it.

HTML Code –

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title> Mobile number validation</title>
  <link rel="stylesheet" href="style.css">
  <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css">
  <script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js"></script>
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js"></script>
</head>

<body>
  <div>
    <form>
      <h1 class="text-center">
        Validate Your Mobile Number !
      </h1>
      <div class="input-group">
        <input id="mobile" type="text" class="form-control" placeholder="Enter the phone number to check..." />
        <div class="input-group-btn">
          <button class="btn btn-primary checkmobile" type="button">
            Check
          </button>
        </div>
      </div>
    </form>
  </div>
  <script src="script.js"></script>
</body>

</html>

Step 02 :- Create another file and named it style.css

CSS Code –

*{
    background-color: #77899c;
}
body {
    border-top: 2px solid #007bff;
    background: #ffffff;
    }
    .container {
    margin-top: 0.5rem;
    }
    .container h1 {
    color: #00ff6a;
    }
    .container .input-group input {
    border-color: #1b9242;
    border-width: 3px;
    border-radius: 25px 0 0 25px !important;
    width: 5px;
    }
    .container .input-group .input-group-btn button {
    border-radius: 0 25px 25px 0 !important;
    }

Step 03 :- Create another file where we put javascript code in and named it script.js

JavaScript Code –

$(document).ready(function() {
    $('body').on('click','.checkmobile', function() {
    var tdr_regex = /((09|03|07|08|05)+([0-9]{8})b)/g; // Do not use +
    var mobile = $('#mobile').val();
    if(mobile !==''){
    if (tdr_regex.test(mobile) == false)
    {
    alert( 'Your phone number ' + mobile + ' is not in the correct format!');
    }else{
    alert( 'Your phone number ' + mobile + ' is valid!');
    }
    }else{
    alert( 'You have not entered your phone number!');
    }
    });
    });

OutPut :-

validate-your-mobile-number-codejuster

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