Union two objects and exclude false values

unionWithExclusion.ts

/**
 * Union two objects and exclude false values when merging same keys
 * @param left
 * @param right
 * @returns New combined object
 */
export function unionWithExclusion(left: object, right: object): object {
    return [left, right].reduce((prev: any, current) => {
        if(current) {
            Object.entries(current).map(([key, value]) => {
                if (!value) return;
                prev[key] =
                    typeof value === 'object'
                        ? unionWithExclusion(prev[key] || {}, value)
                        : value;
            });
        }
        return prev;
	}, {});
}