//#region src/array/differenceWith.ts
/**
* Computes the difference between two arrays based on a custom equality function.
*
* This function takes two arrays and a custom comparison function. It returns a new array containing
* the elements that are present in the first array but not in the second array. The comparison to determine
* if elements are equal is made using the provided custom function.
*
* @template T, U
* @param firstArr - The array from which to get the difference.
* @param secondArr - The array containing elements to exclude from the first array.
* @param areItemsEqual - A function to determine if two items are equal.
* @returns A new array containing the elements from the first array that do not match any elements in the second array
* according to the custom equality function.
*
* @example
* const array1 = [{ id: 1 }, { id: 2 }, { id: 3 }];
* const array2 = [{ id: 2 }, { id: 4 }];
* const areItemsEqual = (a, b) => a.id === b.id;
* const result = differenceWith(array1, array2, areItemsEqual);
* // result will be [{ id: 1 }, { id: 3 }] since the elements with id 2 are considered equal and are excluded from the result.
*
* @example
* const array1 = [{ id: 1 }, { id: 2 }, { id: 3 }];
* const array2 = [2, 4];
* const areItemsEqual = (a, b) => a.id === b;
* const result = differenceWith(array1, array2, areItemsEqual);
* // result will be [{ id: 1 }, { id: 3 }] since the element with id 2 is considered equal to the second array's element and is excluded from the result.
*/
function differenceWith(firstArr, secondArr, areItemsEqual) {
	return firstArr.filter((firstItem) => {
		return secondArr.every((secondItem) => {
			return !areItemsEqual(firstItem, secondItem);
		});
	});
}
//#endregion
exports.differenceWith = differenceWith;
