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JavaScript Recerved Keywords

Reserved Words

Reserved Words are words that have special meaning to JavaScript. Therefore, they can't be used as variable or function names.

You'll recognize many of the reserved words from previous examples, but others will be unfamiliar. Some of the latter group are future reserved words; i.e.it is expected that they'll be commands in future versions of JavaScript. They're being set aside now so that you won't have to revise your code when new revisions are released.

abstract	else	instanceOf	static
boolean	extends	int	super
break	false	interface	switch
byte	final	long	synchronized
case	finally	native	this
catch	float	new	throw
char	for	null	transient
class	function	package	true
const	goto	private	try
continue	if	protected	var
default	implements	public	void
do	import	return	while
double	in	short	with

Other Identifiers To Avoid

These words aren't officially reserved, but as they are part of the JavaScript language, you shouldn't use them as function or variable names. If you do, abandon all hope; the results will be unpredictable.

alert	History	Packages
Anchor	Image	parent
Area	isNaN	parseFloat
Array	java	parseInt
assign	JavaArray	Password
blur	JavaClass	Plugin
Boolean	JavaObject	prompt
Button	JavaPackage	prototype
Checkbox	length	Radio
clearTimeout	Link	ref
close	location	Reset
closed	Location	scroll
confirm	Math	Select
Date	MimeType	self
defaultStatus	name	setTimeout
document	navigate	status
Document	navigator	String
Element	Navigator	Submit
escape	netscape	sun
eval	Number	taint
FileUpload	Object	Text
focus	onBlur	Textarea
Form	onError	top
Frame	onFocus	toString
frames	onLoad	unescape
Function	onUnload	untaint
getClass	open	valueOf
Hidden	opener	window
history	option	Window

JAVA SCRIPTING