Using [] with the Safe Navigation Operator in Ruby

Question

I currently have a piece of code that looks like:

if match = request.path.match(/\A\/(?<slug>(?!admin|assets)\w+)/)   match[:slug] end 

Is there a way to use the safe navigation operator (introduced in 2.3.0) to avoid this if conditional?

Answer 1

Just use the ordinary (non-sugar) form.

request.path.match(/\A\/(?<slug>(?!admin|assets)\w+)/)&.[](:slug) 

Answer 2

For better readability I would pick #dig instead of the #[].

Like,

request.path.match(/\A\/(?<slug>(?!admin|assets)\w+)/)&.dig(:slug) 

instead of

request.path.match(/\A\/(?<slug>(?!admin|assets)\w+)/)&.[](:slug)