Monday, October 12, 2015

Javascript Tutorial For Beginners 6 # JavaScript Functions







<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Javascript Function</title>
</head>
<body>
<h1 id="demo"></h1>
<h1 id="sum"></h1>
<h1 id="sum1"></h1>
<script type="text/javascript">
/*
function functionName (param1, param2) {
       function body 
}
*/
function printMessage () {
    document.getElementById("demo").innerHTML = "Hello world";
}
function add (num1,num2) {
    return num1+num2;
}
printMessage ();
document.getElementById("sum").innerHTML = add(100,200);
document.getElementById("sum1").innerHTML = add("hello ","world");
</script>
</body>
</html>


















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