Hey Underscore, You're Doing It Wrong!

on YouTube ↗37m

" summary

Argues Underscore.js advertises functional tools but blocks real functional patterns: Underscore reverses argument order so autocurry and partial application are awkward, and it forbids extending map so custom Maybe/Either functors can’t integrate. Shows concrete rewrites: add + autocurry, a Dot(property) accessor, composing reverse and first to make last, mapping over promises, and a compose-based pipeline that replaces chain. Mentions a forked utility called score-under created by the author and says compose-heavy code runs in production at luur.

AI-written summary · about

" chapters (6)

1. 0:00Start
2. 2:21Currying Composition
3. 14:03Category Theory
4. 16:01Example of Composition
5. 24:04Useful Practical Applications
6. 31:31Conclusion

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