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Discussion on: Special kind of array in Typescript - Tuple

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jaspeling profile image
Johan

JavaScript/typescript is very dynamic. Which makes it very cool to do things like these - but I'm struggling to see where this will be beneficial? Having a class/interface with those properties on it is much easier to work with, pushing this type into a normal array. It also improves readability. Just because you can doesn't mean you should. I don't know - it's just my personal opinion. If you spend too much time trying to figure out what the previous developer did, you're already failing in writing maintainable code.

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thejsdeveloper profile image
Vikas yadav Author • Edited on

Thanks for your valuable insight.

I partially agree with you @jaspeling . We can return a class/interface. But at the same time it is type introduced in Typescript. And it is very common while writing custom hooks to return an array as I explained in my example. In React useState uses same kind of pattern.

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jaspeling profile image
Johan

Ah, see I have no react knowledge. If that is a pattern used in a very well known framework, I guess I can see the value in a post like this.

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thejsdeveloper profile image
Vikas yadav Author

I see. Yes, it can be bit confusing at first. When I switched to react and saw this pattern I had the same feeling 😊