Safety Nets: Learn to Code With Confidence
summary
Argues that three concrete safety nets cut risk: tests (CI, mutation testing with mutant gem catches regressions—example: a hidden bug when total becomes an attribute), static analysis (RuboCop, flog/flay, Code Climate flag dead code and duplication so refactors actually reduce complexity scores), and code review (extracts VAT logic into a module, removes duplication). Notes stakes with a vivid cost range for radiotherapy $3,000–$15,000.
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chapters (8)
- 0:00Start
- 5:17Catch Errors & Mitigate Risks
- 8:04Safety Nets
- 11:08Check Functionality & Regression
- 12:35Tests Static Analysis Code Review
- 16:31Check Flaws & Smells
- 19:24Check Anything
- 19:36Test + Static Analysis
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