Wednesday 4 November 2015

Important Validation using jquery

1)   Phone number validation using jquery

<html>
<head>
//Import jquery.Min.js
    <script type="text/javascript">
        $.fn.isPhoneNumber = function (options) {
            intRegex = /^[0-9]{1,10}$/;
            phoneNumber = this.val();
            if ((phoneNumber.length != 10) || (!intRegex.test(phoneNumber))) {
                this.val("");
                this.attr("placeholder", "Invalid Phone Number");
                return false;
            }
            return true;
        };

        function validate() {
            $("#checkPhoneNumber").isPhoneNumber(this);
            return false;
        }    </script>
</head>
<body>
    <input type="text" id="checkPhoneNumber" value="ASDFG77" />
    <input type="button" onclick="return validate()"  value="Validate"/>
</body>
</html>


2)   Postal code validation

<html>
<head>
//Import jquery.Min.js
    <script type="text/javascript">

        $.fn.isPostalCodeNumber = function (options) {
            intRegex = /^[0-9]{1,4}$/;
           postalcodeNumber = this.val();
            if ((postalcodeNumber.length != 10) || (!intRegex.test(postalcodeNumber))) {
                this.val("");
                this.attr("placeholder", "Invalid Postal Code Number");
                return false;
            }
            return true;
        };
        function validate() {
            $("#checkPostalCodeNumber").isPostalCodeNumber(this);
            return false;
        }
    </script>
</head>
<body>
    <input type="text" id="checkPostalCodeNumber" value="ASDFG77" />
    <input type="button" onclick="return validate()"  value="Validate"/>
</body>
</html>



3)   English validation

<html>
<head>
//Import jquery.Min.js
    <script type="text/javascript">
     var englishAlphabetAndWhiteSpace = /^[a-zA-Z ]*$/;
        if(!englishAlphabetAndWhiteSpace.test(this.val()))        
  {                this.val("");
                this.attr("placeholder", "Invalid English Alphabets");
                return false;
            }
            return true;
        };
        function validate() {
            $("#checkEnglishAlphabets").isEnglishAlphabets(this);
            return false;
        }
    </script>
</head>
<body>
    <input type="text" id="checkEnglishAlphabets" value="ASDFG77" />
    <input type="button" onclick="return validate()"  value="Validate"/>
</body>
</html>



4)   Get  the selected value form drop down

<html>
<head>
  //Import jquery.Min.js
</head>
<body>
    <select id="countries">
        <option value="1">India</option>
        <option value="2">China</option>
        <option value="3">Russia</option>
        <option value="4">Srilanka</option>
        <option value="5">Pakistan</option>
    </select>
    <input type="button" onclick="return getSelected()" value="Get Selected Value" />
    <script type="text/javascript">
    function getSelected() {
        alert($("#countries option:selected").text());
        alert($("#countries").val());
        return false;
    }
    </script>
</body>
</html>



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