JavaScript Tutorial/Development/debug
Use alert dialog as a way to debug
<html>
<head>
<title>Debug Example</title>
<script type="text/javascript">
function myfunction() {
alert("Entering function.");
var iNumber1 = 5;
var iNumber2 = 10;
alert("Before calculation.");
var iResult = iNumber1 + iNumber2;
alert("After calculation.");
}
myfunction();
</script>
</head>
<body>
</body>
</html>
Write some messages to the Java console
<html>
<head>
<title>Debug Example</title>
<script type="text/javascript">
function test_function() {
java.lang.System.out.println("Entering function.");
var iNumber1 = 5;
var iNumber2 = 10;
java.lang.System.out.println("Before calculation.");
var iResult = iNumber1 + iNumber2;
java.lang.System.out.println("After calculation.");
java.lang.System.out.println("Leaving function.");
}
test_function();
</script>
</head>
<body>
</body>
</html>