future reserved words

Summary

In JavaScript, future reserved keywords must not be used as identifiers, even though they have no special meaning in the current version.

For a list of reserved words in JavaScript, see JavaScript Reserved Words.

Syntax

Future reserved words

The following are future reserved words:

• enum
• await (only treated as a reserved word in modules)

Strict mode future reserved words

The following are also future reserved words when encountered within strict mode code.

• implements
• interface
• package
• private
• protected
• public

See also

Related articles

Javascript

• propertyName

• Number

• unicode

• future reserved words

External resources

• ECMA-262 6th Edition – Draft August 24, 2014

Attributions

• Microsoft Developer Network: Article