JavaScript Reference

JavaScript keywords

Below are the JavaScript keywords. They cannot be used as variables, functions, or object identifiers.

 JavaScript Keywords
break do instanceof typeof
case else new var
catch finally return void
continue for switch while
debugger function this with
default if throw
delete in try

In addition, the literals null, true, and false are reserved for their standard usage.

JavaScript reserved keywords

The EcmaScript specification has the following list of words reserved for future use. You should not use these as identifiers in your JavaScript code.

 JavaScript Reserved Keywords
class implements package static
enum import private super
export interface protected yield
extends let public
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