Digging Up Code Graves in Ruby

on YouTube ↗23m

" summary

Claim: Ruby's standard library exposes Ruby Coverage stdlib which reports per-line execution counts so experiments reveal which branch never runs. Example: a transcript-grading implementation toggles between generic and plus/minus strategies via a feature flag; Coverage shows one path with zero hits. Operational signals include flags at 100% traffic for long periods. Tooling suggestions include logging and the circles utility to do or die to warn or crash after a deadline. Costs shown: wasted API calls, extra tests, slower onboarding.

AI-written summary · about

" chapters (7)

1. 0:00Introduction
2. 1:20Code Hygiene
3. 3:10Dead Code
4. 6:41Feature Toggles
5. 10:41Example
6. 15:15Strategies
7. 19:56What if

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