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Discussion on: Vue composable - array pagination

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Daniel P πŸ‡¨πŸ‡¦ Author

Ahoj,

In short, the benefits are that with the composition API, you can use multiple functionalities that use same variable names, if there's a collision, you can rename or keep it as part of an object. If you use two or more mixins, you could end up with collisions (like same data variable names intended for internal use being used by both). It is possible to setup multiple mixins, but you also have to setup merge strategies in some cases to prevent unintended interactions (think multiple lifecycle hooks, like each mixin using a created).

In addition the mixins don't do well with our IDE tools. If you use a javascript or typescript class to define a composeable, you can have type definitions for your inputs and outputs. If you're using a mixin, there isn't a way (AFAIK) to have the data, methods, etc. be available for the IDE's intellisense.

I think they also offer better testability. The functions are pure javascript and don't rely on Vue rendering, so you can test without special tools.

I think the arguments for composition over inheritance apply here too.

I will try to do a more thorough writeup of the benefits.