sortByNumericArray method

List<T> sortByNumericArray(TFuncMapper<T, List<num>> funcGetNumericArray, [ bool isDescending = false ])

Implementation

List<T> sortByNumericArray(TFuncMapper<T, List<num>> funcGetNumericArray, [ bool isDescending = false ]) {
	List<T> lst = this.toList(growable: true);
	lst.sort((T a, T b) {
		List<num> arrV1 = funcGetNumericArray(a);
		List<num> arrV2 = funcGetNumericArray(b);
		if (arrV1.length != arrV2.length) {
			throw "arrV1.length [${arrV1.length}] is different from arrV2.length [${arrV2.length}]";
		}

		for (int i = 0; i < arrV1.length; i++) {
			num v1 = arrV1[i];
			num v2 = arrV2[i];
			if (isDescending) {
				v1 *= -1;
				v2 *= -1;
			}

			if (v1 < v2) return -1;
			if (v1 > v2) return 1;
		}

		return 0;
	});
	return lst;
}