TypeScript's type predicates are a powerful feature that improves type safety and makes code more reliable. They help confirm what a variable reall...
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I think with TypeScript 5.5, you don't need the
issyntax anymore.See devblogs.microsoft.com/typescript/...
Doesn't this only apply to arrays?
nope luckily not
Thanks @alexanderop for sharing this
seems like a lot to type for small an achievement.
Yes, but it can save you from a lot of issues
True, that's why I would recommend using assertion functions over type predicates.
It would be great if you can share some examples, thanks
Incredibly useful! It’s super important to know this type validations to reuse types and avoid code duplication
Yeah, thanks for reading @algorodev
In fact if you want to check whether an object matches a type/interface, you could use the TypeBox library, that would make the whole process faster and less error-prone.
Schema validation with Zod is another helpful library. Makes your code robust and easy to develop: youtube.com/watch?v=V1HWH6FuTMc
Thanks, I will check it out.
Useful article!, Thank you for sharing.
Thanks @zaselalk
it turned out cool