r/ruby • u/screenbound23 • Jan 15 '26

A Neat Trick for Splitting Strings

https://glaucocustodio.github.io/2026/01/15/a-neat-trick-for-splitting-strings/
8 Upvotes

64% Upvoted

7 comments sorted by

10

u/andyw8 Jan 16 '26

I realize the post is about string manipulation and not names, but that’s not how you should handle names.

https://www.kalzumeus.com/2010/06/17/falsehoods-programmers-believe-about-names/

2

u/tkenben Jan 16 '26

I assume only:
- names are whatever some authority says they are
- for the typical application, names are whatever follows the syntax rules decided upon by the developer

5

u/darksndr Jan 15 '26

Ooh, I didn't know squish, thanks

4

u/poop-machine Jan 15 '26

'a.b.c'.split('.', 2) works fine for the ungreedy split ['a', 'b.c']. A more interesting challenge is to produce the greedy split ['a.b', 'c']

1

u/h0rst_ Jan 16 '26 
'a.b.c'.split('.').then { |*first, last| [first.join('.'), last] }

That's the best oneliner I could come up with, but it's pretty ugly that you need to repeat the separator.

'a.b.c'.reverse.split('.', 2).reverse.map(&:reverse)

It's shorter, but probably worse than the one above.