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by jakear 2824 days ago
Looking forward to better type support. Just started using Vue about a week ago and my main complaint is the lack of any nontrivial type checking. Basically, types are only checked within the context of a single script block, I can’t ensure my props are the right type, or that my event handlers are expecting the right types.
1 comments
honopu 2824 days ago
As you know, you have to register your props. You can do this in the array shorthand where you don't get to specify anything except the prop handle, or via an object with the key being the prop handle and an object with type:Function,Array,String etc. and a required property which can be true or false. You can also provide a default value here. Hope that helps!
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jakear 2823 days ago
I use the decorator (“@Prop”). If that doesn’t emit the appropriate types I would be very surprised, but then again the class style syntax has always seemed to be a bit of an afterthought, so perhaps I wouldn’t be too surprised.

But regardless are those not purely runtime checks? I was of the impression that Vue would just print something to console if you messed up there, not issue an error at build time. (And playing around with an existing project it looks like it indeed does not error at build time. That or the “@Prop” decorator doesn’t do what I’d expect it to)

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jakear 2823 days ago
Yes trying with a fresh, TS-free, default setup of Vue, the props are still verified only at run time.
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