Saturday, January 18, 2025

.tap

https://ruby-doc.org/3.4.1/Kernel.html#method-i-tap

tap {|x| block } → obj 

Yields self to the block and then returns self. The primary purpose of this method is to “tap into” a method chain, in order to perform operations on intermediate results within the chain.

What a weird method, but a method that seems pretty useful.

I have used tap to capture output from a running docker container to shove into a cache that was fed to users via action cable. I can see how useful it would be for debugging and testing though too. At least if you werent using pry.

Outside of that, I actually do like how it looks as a way to organize code. I can see that being contentious in the community though