deepmerge.js
5d92ed19fb80issn4frontend

deepmerge.js
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			import _extends from "@babel/runtime/helpers/esm/extends";
			import _typeof from "@babel/runtime/helpers/esm/typeof";
			export function isPlainObject(item) {
			return item !== null && _typeof(item) === 'object' && item.constructor === Object;
			}
			function deepClone(source) {
			if (!isPlainObject(source)) {
			return source;
			}
			var output = {};
			Object.keys(source).forEach(function (key) {
			output[key] = deepClone(source[key]);
			});
			return output;
			}
			export default function deepmerge(target, source) {
			var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {
			clone: true
			};
			var output = options.clone ? _extends({}, target) : target;
			if (isPlainObject(target) && isPlainObject(source)) {
			Object.keys(source).forEach(function (key) {
			// Avoid prototype pollution
			if (key === '__proto__') {
			return;
			}
			if (isPlainObject(source[key]) && key in target && isPlainObject(target[key])) {
			// Since `output` is a clone of `target` and we have narrowed `target` in this block we can cast to the same type.
			output[key] = deepmerge(target[key], source[key], options);
			} else if (options.clone) {
			output[key] = isPlainObject(source[key]) ? deepClone(source[key]) : source[key];
			} else {
			output[key] = source[key];
			}
			});
			}
			return output;
			}