Write once, run anywhere - cross-env JS

on YouTube ↗15m

" summary

Claim: a single codebase can run on browser Node and Deno but only by shrinking to their common feature set and by adding platform-specific adapters. Uses a monorepo that outputs ESM and CommonJS dual builds (Rollup suggested) and drops most third-party deps, producing handcrafted lightweight code. Handles disjoint features with dependency injection using a persistent storage interface injection pattern (localStorage vs filesystem). Result trades fewer runtime deps for more build complexity and explicit adapter code that actually works across the three runtimes.

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" chapters (6)

1. 0:00Introduction and philosophy
2. 2:30Complexity in programming
3. 3:32Cross-environment strategy
4. 6:24Benefits of platform unity
5. 8:26Build chain considerations
6. 10:23Handling disjunct features

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