I don't quite understand how this code works. Where does the `nil` come from? Wh... | Hacker News

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		software_writer on Aug 21, 2023 \| parent \| context \| favorite \| on: Ruby's hash is a Swiss-army knife I don't quite understand how this code works. Where does the `nil` come from? What operation are we performing on 3 that causes it to return `nil`?

breckenedge on Aug 21, 2023 [–]

1, 2, and 3 are being passed as lookups to the a hash. 3 is undefined on the hash, hence nil.

software_writer on Aug 21, 2023 | [–]

Ah, that makes sense. Thank you!

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