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JavaScript regex validate Character
2 Answer(s)      2 years and 6 months ago
Posted in : JavaScript Questions


JavaScript regex validate Character


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May 12, 2012 at 1:48 PM


<html>
<head>
<title>Character validation using regex</title>
<script type="text/javascript">
    function validate() {
        var name = document.getElementById("name").value;
        var pattern = /\W/;
        if (pattern.test(name)) {
            alert("Inputed Character value : "+name);
            return true;
        } 
            alert("It is not valid character !");
            return false;

    }
</script>

</head>
<body>
<h2>Validating Character..</h2>
Enter Any character value :
<input type="text" name="name" id="name" />
<input type="submit" value="Check" onclick="validate();" />
</body>
</html>


May 12, 2012 at 1:49 PM


The above example validate character value by using regular expression- /\W/

Here /../(forward slashes) is used to quote your regular expression.

\W shows the special character.

test() method takes one argument and check that to the pattern.



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