Low Maintenance Types in TypeScript
Seite 3: Low Maintenance, High Productivity
TypeScript’s type system is immensely powerful. Union, discriminated union, and intersection types allow for detailed modeling of data. Thanks to index access types, mapped types, conditional types, and generics, developers can create relationships across types. This brings TypeScript one step closer to describing any possible scenario of a JavaScript program with just a few lines of code. The type system does not get in the way, does not interrupt developers during their coding process, and only offers support by showing red squiggly lines where something might break.
If you want to know more about TypeScript and its type system, you can check out the author’s blog and his book "TypeScript in 50 Lessons." Both deal with the long lasting aspects of TypeScript and explore the depths of the type system in detail. The book’s website includes a sample chapter about union and intersection types. The TypeScript playground is a great place to start developing types in isolation. There you can also find all of the examples mentioned in this article.
Stefan Baumgartner
works at Dynatrace. He writes for Manning and A List Apart, and made the Kessel Run in less than 12 parsecs. Recently, he has published his second book "TypeScript in 50 Lessons" with Smashing Magazine. In his spare time, he co-organizes ScriptConf, DevOne, and the local Rust meetup in Linz, besides co-hosting the German language Working Draft podcast. Stefan enjoys Italian food, Belgian beer, and British vinyl records.
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