TypeScript config and tooling

What you'll learn

• Why your bundler is not your type-checker
• The tsconfig flags worth understanding (and the ones to ignore)
• How strict mode actually shapes your code
• How TypeScript finds modules and types
• Path aliases without breaking the toolchain
• Reading a long error trace without panicking

1. 01
   tsc vs bundler-driven type-checking

   Vite stripped your types and shipped. Why your bundler is not your type-checker.
   14 min
2. 02
   The tsconfig.json tour

   The flags that actually matter, walked through one real config at a time.
   17 min
3. 03
   Strict mode in depth

   What strict turns on, and the four flags worth adding on top.
   15 min
4. 04
   Module resolution

   How TypeScript finds the file behind every import — node, bundler, nodenext.
   14 min
5. 05
   Path aliases

   @/components is one config away. The catch is the bundler also has to know.
   12 min
6. 06
   Declaration files (.d.ts)

   Type-only files. Why @types exists. When you have to write one yourself.
   15 min
7. 07
   Project references

   Splitting a monorepo into typed projects that build in the right order.
   15 min
8. 08
   Reading tooling type errors

   The 14-line error message, decoded. Where to look first when overwhelmed.
   13 min