It is a very very simple example, it's true that I'm not using any specific Typescript code inside the setup function but I could have use it because the project is configured to transpile typescript.
This article was about configuring the environment to create a very easy component to try composition API through Typescript. It's clear that you can easily remove all the TS setup and go with the vanilla JS ;)
PS: if I had used only JS I would have defined a the component with export default { setup(){} } and not with export default defineComponent({ .. })
It is a very very simple example, it's true that I'm not using any specific Typescript code inside the setup function but I could have use it because the project is configured to transpile typescript.
This article was about configuring the environment to create a very easy component to try composition API through Typescript. It's clear that you can easily remove all the TS setup and go with the vanilla JS ;)
PS: if I had used only JS I would have defined a the component with
export default { setup(){} }and not withexport default defineComponent({ .. })I see. Thank you for clearly that up for me. Good reading too.