[[painless-keywords]]
=== Keywords

Keywords are reserved tokens for built-in language features and cannot be used
as <<painless-identifiers, identifiers>> within a script. The following are
keywords:

[cols="^1,^1,^1,^1,^1"]
|====
| if | else | while | do | for
| in | continue | break | return | new
| try | catch | throw | this | instanceof
|====