JScript has a number of reserved words that you cannot use as identifiers. Reserved words have a specific meaning to the JScript language, as they are part of the language syntax. Using a reserved word causes a compilation error when loading your script.
JScript also has a list of future reserved words. These words are not currently part of the JScript language, although they are reserved for future use.
|
break |
delete |
function |
return |
typeof |
|
case |
do |
if |
switch |
var |
|
catch |
else |
in |
this |
void |
|
continue |
false |
instanceof |
throw |
while |
|
debugger |
finally |
new |
true |
with |
|
default |
for |
null |
try |
|
Future Reserved Words
|
abstract |
double |
goto |
native |
static |
|
boolean |
enum |
implements |
package |
super |
|
byte |
export |
import |
private |
synchronized |
|
char |
extends |
int |
protected |
throws |
|
class |
final |
interface |
public |
transient |
|
const |
float |
long |
short |
volatile |
When choosing identifiers it is also important to avoid any words that are already the names of intrinsic JScript objects or functions, such as String or parseInt.
