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Java Script Tutorials

parameter passing example javascript

<html>
<head>
<script type="text/javascript">
function checkSimple()
{
num = 100;
modifySimple(num);
alert("The new value is "+num);
}
function modifySimple(data)
{
data+= 12;
}

function checkRef()
{
var refType = ["first ", " second", " third"];
modifyRef(refType);
alert("The new ref value is "+refType[0]);

}
function modifyRef(ref)
{
ref[0] = "changed";
//ref = new String("Me");
}

</script>
</head>
<body>

<input type="button" onclick="checkSimple()" value="Pass byValue"/><br></p>

<input type="button" onclick="checkRef()" value="Pass ByRef"/><br></p>


</body>
</html>

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