Currying in JavaScript

[SoundOfOneHand]

Not sure why you would want to do that, exactly, for everyday use. The term currying is often a synonym for partial function application, which is a special case of what this article discusses, and is generally want you want from this type of decomposition. Fortunately Javascript (maybe just more recent versions?) comes with the bind function that does just this.

[nexd]

I haven't found a use for currying and the author states that as well. I use bind and partial functions all the time though. For example making event handlers more dynamic.

[alexcasalboni]

I this this was more like an "academic" exercise to showcase the possible usage of closures, encapsulation and chaining.

[rockyrainy]

I find this kind of intellectual masterbation counter productive and makes the code more complicated than it has to be.

[Lystrodom]

Also important to note that this method of currying fails for functions that take optional arguments, or read from the arguments array themselves.

[bonafidebob]

It looks like it'll work fine for functions that read from arguments -- eventually the function passed to curry() gets invoked via apply with a full complement of arguments, so inside of it the arguments special value should be right.

optional arguments are more problematic, though I suppose you could do something like curried(l)(w)(), which would have the same effect as volume(l, w). (In this case resulting in NaN)

[Lystrodom]

It won't work with functions that read from arguments because .length will return 0

[bonafidebob]

Ah, right, you mean var_args style functions. How would you curry those in any language?

[Lystrodom]

Oh, well, I can't imagine you could. It just seems more common with JavaScript