The most incredible power of the language lies in composing, inferring, and manipulating types. This article will summarize several tips that help you use the language to its full potential. For example, new learners find Typescript’s way of composing types counter-intuitive.
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#1 Think in {Set}TypeScript and Set Theory | Iván Ovejero#2 Understand declared type and narrowed type#3 Use discriminated union instead of optional fields#4 Use type predicate to avoid type assertion#5 Control how union types are distributed#6 Use exhaustive checking to catch unhandled cases at compile time#7 Prefer type over interface#8 Prefer tuple over array whenever appropriate#9 Control how general or specific the inferred types are#10 Use infer to create extra generic type parameters#11 Stay DRY by being creative with type manipulationWrap up11 Comments
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