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Typing correctly matters

Ziad Bizri at dotJS 2019

Ziad shares some guidelines for using TypeScript types as precisely as possible.

More details

There are three main ideas in this talk:

  • Use all the power of static analysis: never use optional fields and type any
  • Use a mix of runtime and static analysis using JSONschema validation
  • Use runtime checks when static analysis falls short, for instance using ES6 Proxies