Mega Code Archive
Adding a replace() Method to the String Object
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<html>
<head>
<title>Adding a replace() Method to the String Object</title>
</head>
<body>
<script language="JavaScript1.1" type="text/javascript">
<!--
String.prototype.replace = stringReplace;
function stringReplace(findText, replaceText) {
var originalString = new String(this);
var pos = 0;
var len = findText.length;
pos = originalString.indexOf(findText);
while (pos != -1) {
preString = originalString.substring(0, pos);
postString = originalString.substring(pos + len,originalString.length);
originalString = preString + replaceText + postString;
pos = originalString.indexOf(findText);
}
return originalString;
}
var origString = new String("This is a test");
var findString = new String("i");
var replaceString = new String("I");
var resultString = origString.replace(findString, replaceString)
document.write("The original string was: " + origString + "<br>");
document.write("We searched for: " + findString + "<br>");
document.write("We replaced it with: " + replaceString + "<br>");
document.write("The result was: " + resultString);
//-->
</script>
</body>
</html>
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