Initial value when typing Template Refs #1950

FloEdelmann · 2022-09-06T16:52:36Z

FloEdelmann
Sep 6, 2022
Collaborator

In TypeScript with Composition API → Typing Template Refs, it is recommended to use an explicit initial value of null:

const el = ref<HTMLInputElement | null>(null) // type: Ref<HTMLInputElement | null>

Why not simplify it to leverage the implicit undefined instead?

const el = ref<HTMLInputElement>() // type: Ref<HTMLInputElement | undefined>