Map an array modifying only elements matching a certain condition

Question

In Ruby, what is the most expressive way to map an array in such a way that certain elements are modified and the others left untouched?

This is a straight-forw

Answer 1

Your map solution is the best one. I'm not sure why you think map_modifying_only_elements_where is somehow better. Using map is cleaner, more concise, and doesn't require multiple blocks.