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Appendix A   Appendix A Reserved Words


This appendix lists the reserved words in JavaScript.

The reserved words in this list cannot be used as JavaScript variables, functions, methods, or object names. Some of these words are keywords used in JavaScript; others are reserved for future use.



abstract
boolean
break
byte
case
catch
char
class
const
continue
debugger
default
delete
do
double

 

else
enum
export
extends
false
final
finally
float
for
function
goto
if
implements
import
in

 

instanceof
int
interface
long
native
new
null
package
private
protected
public
return
short
static
super

 

switch
synchronized
this
throw
throws
transient
true
try
typeof
var
void
volatile
while
with