labsop_h5/src/utils/arrayOperation.ts

/*
 * @Author: wanglj 471442253@qq.com
 * @Date: 2023-07-11 14:13:56
 * @LastEditors: wanglj
 * @LastEditTime: 2023-07-20 16:22:10
 * @Description: file content
 * @FilePath: \labsop_meno\frontend\packages\vue-next-admin\src\utils\arrayOperation.ts
 */
/**
 * 判断两数组字符串是否相同（用于按钮权限验证），数组字符串中存在相同时会自动去重（按钮权限标识不会重复）
 * @param news 新数据
 * @param old 源数据
 * @returns 两数组相同返回 `true`，反之则反
 */
export function judementSameArr(newArr: unknown[] | string[], oldArr: string[]): boolean {
	const news = removeDuplicate(newArr);
	const olds = removeDuplicate(oldArr);
	let count = 0;
	const leng = news.length;
	for (let i in olds) {
		for (let j in news) {
			if (olds[i] === news[j]) count++;
		}
	}
	return count === leng ? true : false;
}

/**
 * 判断两个对象是否相同
 * @param a 要比较的对象一
 * @param b 要比较的对象二
 * @returns 相同返回 true，反之则反
 */
export function isObjectValueEqual<T>(a: T, b: T): boolean {
	if (!a || !b) return false;
	let aProps = Object.getOwnPropertyNames(a);
	let bProps = Object.getOwnPropertyNames(b);
	if (aProps.length != bProps.length) return false;
	for (let i = 0; i < aProps.length; i++) {
		let propName = aProps[i];
		let propA = a[propName];
		let propB = b[propName];
		if (!b.hasOwnProperty(propName)) return false;
		if (propA instanceof Object) {
			if (!isObjectValueEqual(propA, propB)) return false;
		} else if (propA !== propB) {
			return false;
		}
	}
	return true;
}

/**
 * 数组、数组对象去重
 * @param arr 数组内容
 * @param attr 需要去重的键值（数组对象）
 * @returns
 */
export function removeDuplicate(arr: EmptyArrayType, attr?: string) {
	if (!Object.keys(arr).length) {
		return arr;
	} else {
		if (attr) {
			const obj: EmptyObjectType = {};
			return arr.reduce((cur: EmptyArrayType[], item: EmptyArrayType) => {
				obj[item[attr]] ? '' : (obj[item[attr]] = true && item[attr] && cur.push(item));
				return cur;
			}, []);
		} else {
			return [...new Set(arr)];
		}
	}
}
export function handleTree(data:[], id = 'id', parentId = 'parentId', children = 'children', rootId = 0) {
	//对源数据深度克隆
	const cloneData = JSON.parse(JSON.stringify(data))
	//循环所有项
	const treeData =  cloneData.filter(father => {
    let branchArr = cloneData.filter(child => {
    //返回每一项的子级数组
    return father[id] === child[parentId]
    });
    branchArr.length > 0 ? father[children] = branchArr : '';
    //返回第一层
    return father[parentId] == rootId;
  });
	return treeData != '' ? treeData : data;
}