mergeDeep

gistfile1.txt

/**
 * mergeDeep
 *
 * @param {*} target object to merge data into
 * @param {*} source object containing the data to merge
 */
export function deepMerge(target, source) {
	let output = Object.assign({}, target);
	if (isObject(target) || isObject(source)) {
		Object.keys(source).forEach((key) => {
            if (isObject(source[key])) {
                if (!(key in target)) {
                    Object.assign(output, {
                        [key]: source[key]
                    });
                } else {
                    output[key] = deepMerge(target[key], source[key]);
                }
            } else {
                Object.assign(output, {
                    [key]: source[key]
                });
            }
		});
    }
	return output;
}