@cran/lib.vue.ref/src/array/useIndexOf.ts

Vue Reactivity Extensions

import { computed } from "vue";
import { type MaybeWrapped, unwrap } from "../utility";

/**
 * @since 0.0.1
 * @category Array
 * @inheritdoc Array#indexOf
 */
export function useIndexOf<T> (
  values: MaybeWrapped<Array<MaybeWrapped<T>>>,
  searchElement: MaybeWrapped<T>,
  fromIndex?: MaybeWrapped<number | undefined>
) {
  return computed(function compute ( ) {
    return unwrap(values).map<T>(unwrap).indexOf(
      unwrap(searchElement), unwrap(fromIndex)
    );
  });
}