bailType() — vue Function Reference

Source Code

types/test/v3/reactivity-test.ts lines 81–100

function bailType(arg: HTMLElement | Ref<HTMLElement>) {
  // ref coercing
  const coerced = ref(arg)
  expectType<Ref<HTMLElement>>(coerced)

  // isRef as type guard
  if (isRef(arg)) {
    expectType<Ref<HTMLElement>>(arg)
  }

  // ref unwrapping
  expectType<HTMLElement>(unref(arg))

  // ref inner type should be unwrapped
  // eslint-disable-next-line no-restricted-globals
  const nestedRef = ref({ foo: ref(document.createElement('DIV')) })

  expectType<Ref<{ foo: HTMLElement }>>(nestedRef)
  expectType<{ foo: HTMLElement }>(nestedRef.value)
}