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

Vue Reactivity Extensions

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

/**
 * @since 0.0.1
 * @category Array
 */
export type ArrayReducer<T, R> = (
  previousValue: R, currentValue: T,
  currentIndex: number, array: Array<MaybeWrapped<T>>
) => R;

/**
 * @since 0.0.1
 * @category Array
 * @internal
 */
export function wrapArrayReducer<T, R> ( reducer: ArrayReducer<T, R> ) {
  return function wrapReducer (
    previousValue: R,
    currentValue: MaybeWrapped<T>,
    currentIndex: number,
    array: Array<MaybeWrapped<T>>
  ) {
    return reducer(previousValue, unwrap(currentValue), currentIndex, array);
  };
}