Javascript关键字(Reserved Words)是指在Javascript语言中有特定含义,成为Javascript语法中一部分的那些字。Javascript关键字是不能作为变量名和函数名使用的。使用Javascript关键字作为变量名或函数名,会使Javascript在载入过程中出现编译错误。
Javascript关键字列表:
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
Javascript未来关键字(Javascript Future Reserved Words)
Javascript还有一些未来关键字,这些字虽然现在没有用到Javascript语言中,但是将来有可能用到。
Javascript未来关键字列表:
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
Javascript保留字不可以用作变量,函数名,对象名等,其中有的保留字是为以后Javascript扩展用的.
- 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
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