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Writing Javascript, but with types!

Matias Huhta Matias Huhta
Wed
24
Nov
HelsinkiJS November 2021 HelsinkiJS HelsinkiJS

Every once in a while, you stumble upon a codebase that is written in plain old JavaScript, and you remember how unsafe it feels to write code without a type system supporting you. With modern tooling and some JSDoc you can turn a JavaScript project into a type safe one, without compromising on portability or developer experience. And as you delve deeper into the rabbit hole, maybe even unlock some new features.