Hands-On Design Patterns with React Native

Flipping

It is nice that we can curry a function, but what if we wanted to pass arguments in a different sequence? For the change of the first two arguments, there is a handy function called flip, demonstrated here:

const someFunc = x => y => z => x + y + z;const someFuncYFirst = R.flip(someFunc);// equivalent to (y => x => z => x + y + z;)

If we needed to reverse all of the arguments, unfortunately there is no such function. But we can write it out nonetheless for our use case:

const someFuncReverseArgs = z => y => x => someFunc(x, y, z);