What are the uses for the bindable and callable pattern?

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I've seen this little snippet of code floating around before and never really taken the time to wrap my head around what it does.

var bind = Function.bind;
var call = Function.call;

var bindable = bind.bind(bind);
var callable = bindable(call);

I understand in concept and in practice what .bind and .call do, but what is the benefit, advantage or practical use of creating the bindable and callbable functions above?

Below is a contextual example of a use case for bindable.

var bound = bindable(db.find, db).apply(null, arguments);
var findable = bindable(db.find, db);
var bound = findable.apply(null, arguments);
var bound = findable(1, 2, 3);

What can this pattern be used for?

asked 30 secs ago

Dan Prince

1,887

What are the uses for the bindable and callable pattern?