this
new
super
delete
void
typeof
+
-
~
!
<<
>>
>>>
? :
,
if
do
while
for
in
of
await
continue
break
return
with
switch
throw
try
debugger
?
u
m
/
p
1-9
0
`
本标准定义了 ECMAScript 2027 通用编程语言。