Function reduce

src/index.js:25–30

(array, reducer, accumulator)

 *	);
 */
export async function reduce(array, reducer, accumulator) {
	for (let i=0; i<array.length; i++) {
		accumulator = await reducer(accumulator, array[i], i, array);
	}
	return accumulator;
}


/** Invoke an async transform function on each item in the given Array **in parallel**,