Trim the leading and trailing spaces

Trim the leading and trailing spaces : Filter : Regular Expressions JAVASCRIPT TUTORIALS

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Trim the leading and trailing spaces



<html>
<head>
<title>Trim Example</title>
<script type="text/javascript">
    String.prototype.trim = function () {
        var reExtraSpace = /^s+(.*?)s+$/;
        return this.replace(reExtraSpace, "$1");
    };


    function showText() {
        var oInput1 = document.getElementById("txt1");
        var oInput2 = document.getElementById("txt2");
        oInput2.value = oInput1.value.trim();
    }
</script>
</head>
<body>
<textarea rows="10" cols="50" id="txt1"></textarea><br />
<input type="button" value="Trim" onclick="showText()" /></p>
<P>Trimmed Text:<br />
<textarea rows="10" cols="50" id="txt2"></textarea></p>

</body>
</html>