DaFoSi-H5/uview-ui/libs/function/deepMerge.js

import deepClone from "./deepClone";

// JS对象深度合并
function deepMerge(target = {}, source = {}) {
	target = deepClone(target);
	if (typeof target !== 'object' || target === null || typeof source !== 'object' || source === null) return target;
	const merged = Array.isArray(target) ? target.slice() : Object.assign({}, target);
	for (const prop in source) {
		if (!source.hasOwnProperty(prop)) continue;
		const sourceValue = source[prop];
		const targetValue = merged[prop];
		if (sourceValue instanceof Date) {
			merged[prop] = new Date(sourceValue);
		} else if (sourceValue instanceof RegExp) {
			merged[prop] = new RegExp(sourceValue);
		} else if (sourceValue instanceof Map) {
			merged[prop] = new Map(sourceValue);
		} else if (sourceValue instanceof Set) {
			merged[prop] = new Set(sourceValue);
		} else if (typeof sourceValue === 'object' && sourceValue !== null) {
			merged[prop] = deepMerge(targetValue, sourceValue);
		} else {
			merged[prop] = sourceValue;
		}
	}
	return merged;
}

export default deepMerge;