Question

Let’s say that an API I’m using requires a callback function that takes two parameters, apple and banana.

An example in CoffeeScript:

example = (apple, banana) -> [...]

The function I want to use as the callback function takes only banana for its parameter:

myFunction = (banana) -> [...]

So I create a new function in order to use myFunction as the callback:

callback = (apple, banana) -> myFunction banana

Is there a proper term for this kind of function?

Answer 1

When working with databases one uses the term “projection” for selecting and reordering list values (as parameters are). This is also typical in relational algebra (see here), so I would apply the term here, too.