how to validate phone and mobile number in javascript

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1.19/5 (4 votes)

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how to validate phone and mobile number in javascript.
for example phone no -044 27221343. mobile no-9944034466/8428664422
/7666544221

Posted 17-Aug-11 19:37pm

csaravanan28

Updated 19-Mar-20 20:37pm

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5 solutions

Solution 1

JavaScript

function Validate()
        {
            var x = document.form1.txtPhone.value;
            var y = document.form1.txtMobile.value;
           if(isNaN(x)||x.indexOf(" ")!=-1)
           {
              alert("Enter numeric value")
              return false; 
           }
           if (x.length>8)
           {
                alert("enter 8 characters");
                return false;
           }
           if (x.charAt(0)!="2")
           {
                alert("it should start with 2 ");
                return false
           }

           if(isNaN(y)||y.indexOf(" ")!=-1)
           {
              alert("Enter numeric value")
              return false; 
           }
           if (y.length>10)
           {
                alert("enter 10 characters");
                return false;
           }
           if (y.charAt(0)!="9")
           {
                alert("it should start with 9 ");
                return false
           }
        }

Posted 17-Aug-11 19:41pm

senthil sennu

Solution 3

hi,,

XML

<script type="text/javascript">
    function onlyNumbers(event) {
        var e = event || evt; // for trans-browser compatibility
        var charCode = e.which || e.keyCode;
        if (charCode > 31 && (charCode < 48 || charCode > 57))
            return false;

        return true;
    }
</script>

this will allow only numbers in text

Posted 18-Aug-11 17:59pm

anvas kuttan

Solution 8

<

<div class="input-field col s6">
                    <label>
                      Phone Number
                    </label>
                    <input type="text" name="phone" class="phone required">
                  </div>

<script type="text/javascript">
        var $el = {
          phone: $('[name=phone]'),
        }
        var regex = {
  phone: {
    sg: /^(\d{4})(\d{4})$/,
    us: /^1?(\d{3})(\d{3})(\d{4})$/,
  }
};

// Custom phone number validation
function validatePhone(value, el) {
  // Get country code
  var cc = $el.country.val();
  // Normalize value
  value = $.trim(value).replace(/\D/g, '');
  // Validate!
  var re = regex.phone[cc],
    isOptional = this.optional(el),
    isValid = value.length > 7 && re.test(value);
  if (isValid) {
    switch (cc) {
      case 'sg':
        // Output nicely formatted Singapore phone number
        el.value = value.replace(re, '$1-$2');
        break;
      case 'us':
        // Output nicely formatted US phone number
        el.value = value.replace(re, '($1) $2-$3');
        break;
      default:
        el.value = value;
    }
  }
  return isOptional || isValid;
}

// Add custom validator method for inputs with "phone" class
$.validator.addMethod('phone', validatePhone, 'Invalid phone number.');

// Validate form
$el.form.validate({
  onkeyup: false
});

$el.country.change(function() {
  // Re-validate phone number
  $el.phone.valid();
  // Or re-validate entire form
  //$el.form.valid();
});

      </script>

Posted 18-Apr-19 23:26pm

Member 14092385

Solution 10

For Phone number and mobile number validation :

function PhoneNumberValidation() {

    var txtPhone = document.getElementById("txtPhoneNo").value;
    var phoneno = /^\+?([0-9]{2})\)?[-. ]?([0-9]{4})[-. ]?([0-9]{4})$/;
    var mobileno = /^((\\+91-?)|0)?[0-9]{10}$/;
    if ((txtPhone.match(phoneno)) || (txtPhone.match(mobileno))) {
        document.getElementById("demo").innerHTML = "Valid";
    }
    else {
        document.getElementById("demo").innerHTML = "Not Valid";
    }

}

Posted 19-Mar-20 20:38pm

ishan_shah

Comments

Maciej Los 20-Mar-20 3:21am

Do you think that questioner is interested in an answer after 9 years?

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Peter_in_2780 · Accepted Answer · 2011-08-17T20:45:00

Javascript also supports RegExp (regular expressions). I would suggest using Expresso's phone number regexp examples as a base. They have thought about lots of things like area codes in brackets, spaces or dashes between groups of digits, etc. You will need to think about what you want to support:
your local conventions / rules for numbers
domestic area codes
international numbers and dialling prefix
and so on.

It's not as simple as some people think.

Peter

[edit] Here's a simple example of using a Javascript regexp