JavaScript 有一些保留的 “关键字,” 或者这些单词在语言中有其它含义。 除非你以那样的含义使用它们，否则你应该避免在你的代码中使用这些关键字。
break
case
catch
continue
default
delete
do
else
finally
for
function
if
in
instanceof
new
return
switch
this
throw
try
typeof
var
void
while
with
abstract
boolean
byte
char
class
const
debugger
double
enum
export
extends
final
float
goto
implements
import
int
interface
long
native
package
private
protected
public
short
static
super
synchronized
throws
transient
volatile
Copyright Rebecca Murphey, released under the Creative Commons Attribution-Share Alike 3.0 United States license.