Type First, Code Later

Type-First Development in TypeScript: Thinking in Types

Sunny Sun
Level Up Coding
Published in
7 min readMay 23, 2023

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Type First Development

TypeScript is all about types. Its type system allows you to define the shape of your data and specify the types of variables, functions, and objects.

In a post two years ago, I delved into the concept of Type flowing.

Type flowing is when one or more subtypes are mapped and

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I am full stack developer. Love coding, learning, writing. Checkout my NestJS course: https://shorturl.at/cpJM7, visit my blog https://sunnyy02.github.io