What is the difference between .map, .every, and .forEach?

Question

I\'ve always wondered what the difference between them were. They all seem to do the same thing...

Answer 1

For Ramda, the difference between R.map() and R.forEach() is:

1. R.forEach() returns the original array whereas R.map() returns a functor
2. R.forEach() can only operate on array but R.map() can also operate on an object (i.e. the key/value pairs of the object are treated like an array)