The Third Age of JavaScript
summary
Argument that the web is entering a new decade: IE11’s market share falls from 3.6% to 1.6% and corporate support is dropping, enabling a shift to ES Modules adoption tripled to ~3.8% of Chrome page loads. Tooling moves from JS cores to polyglot systems—TypeScript for APIs and Go/Rust cores—yielding dramatic build speedups (esbuild 10–100x faster), new unified CLIs like Deno and Rome, and mono-repo tooling rewrites (TurboRepo, SWC) that already work and spread.
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chapters (12)
- 0:00Introduction to JavaScript history
- 1:03Why study JavaScript's past
- 3:49First age of JavaScript
- 7:15Second age of JavaScript
- 10:25Third age overview
- 10:47Replacing CommonJS modules
- 13:36Death of IE11 enabling ES modules
- 15:22New tooling in third age
- 19:33Collapsing tooling layers
- 24:47VC funding in JavaScript
- 25:29Possible death of JavaScript
- 26:31Conclusion and career advice
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