The Secret To Fast TypeScript
summary
TypeScript slowness is fixable: replacing monolithic builds and brittle tsconfig paths with npm/yarn/pnpm workspaces plus TypeScript project references turns a 500-file typecheck from ~101 seconds into ~40 seconds by compiling packages in isolation; NX run-many demonstrates parallel builds and cache behavior. For editor lag, pre-building libraries and shipping generated .d.ts files avoids expensive live type evaluation. Avoid deep, nested type tricks that blow up editor performance.
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chapters (11)
- 0:00TypeScript introduction
- 3:54Performance issues
- 5:19Slow builds demo
- 7:35Monorepos vs builds
- 10:08How TypeScript resolves dependencies internally
- 12:53Using workspaces for faster builds
- 15:21Project references
- 19:19Editor speed issues
- 21:53Pre-build libraries
- 23:41Best practices summary
- 24:44Q&A on React tradeoffs
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