Ключевые слова

* abstract (*)
* as (2)
* boolean
* break
* byte
* case
* catch
* char
* class (2)
* continue
* const (2)
* debugger (*)
* default
* delete
* do
* double
* else
* enum (*)
* export (2)
* extends (2)
* false
* final
* finally
* float
* for
* function
* goto (*)
* if
* implements (*)
* import (2)
* in
* instanceof
* int
* interface (2)
* is (2)
* long
* namespace (2)
* native (*)
* new
* null
* package (2)
* private (2)
* protected (*)
* public (2)
* return
* short
* static (2)
* super (2)
* switch
* synchronized (*)
* this
* throw
* throws (*)
* transient (*)
* true
* try
* typeof
* use (2)
* var
* void
* volatile (*)
* while
* with

(*) - планируется для включения
(2) - существуют в JavaScript 2.0