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The article mentions a non handled case in a switch is flagged in Reason but not TypeScript. That is technically true, but you can flag an unhandled case by adding a default case which takes advantage of the never type

https://stackoverflow.com/questions/39419170/how-do-i-check-...

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This isn't needed any more. Modern TS enforces switch exhaustiveness out-of-the box (if you provide the proper union type, of course).

Oh awesome, I didn't know that. Thanks for the heads up.

This is not true: https://www.typescriptlang.org/docs/handbook/advanced-types....

Yeah, I always use strict and specify return type. IMO, still counts.

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