How to use global variable
Global Variable
<html>
<head>
<script>
var data=200;//global variable
function a()
{
document.writeln(data);
}
function b(){
document.writeln(data);
}
a();//calling JavaScript function
b();
</script>
</body>
</html>
java script book in PDF format
What is JavaScript? JavaScript is a scripting language that enables web developers/designers to build more functional and interactive websites. Common uses of JavaScript include: Alert messages Popup windows Popup windows Dynamic drop down menus Form validation Displaying date/time JavaScript usually runs on the client-side(the browser's side), as opposed to server-side(on the web server). One benefit of doing this is performance. On the client side, JavaScript is loaded into the browser and can run as soon as it is called. *---java script book in PDF format--*
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