Prototype method, static method, decorator

[js-choi]

Should memo be a prototype method, a static function, a function decorator, or multiple?

This depends most on whether memo will be mostly used on anonymous functions, named function declarations, and/or class methods.

.bind is a prototype method.

Underscore and Lodash (necessarily) use static functions.

Python’s lru_cache is a decorator, although we don’t have function decorators yet.

[zloirock]

I'm strictly for a prototype method for .bind consistency and simplicity of usage.

[nektro]

I would also prefer a prototype method