front-end/jdApp/src/utils/util.js

import CONSTANT from "@/constant";
import { mobileReg } from "@/utils/tools/validate";
import { getMiniAppUrl, isWxBrowser } from "@/utils/common";
// 是否为空
const isEmpty = val => {
	if (val instanceof Array) {
		if (val.length === 0) return true;
	} else if (val instanceof Object) {
		if (!Object.keys(val).length) return true;
	} else {
		if (
			val === "null" ||
			val === null ||
			val === "undefined" ||
			val === undefined ||
			val === ""
		)
			return true;
		return false;
	}
	return false;
};
/**
 * 深拷贝对象
 * @param {要拷贝对象} obj
 */
export const copyObject = obj => {
	let str,
		newobj = Array.isArray(obj) === true ? [] : {};
	if (typeof obj !== "object") {
		return;
	} else if (JSON) {
		(str = JSON.stringify(obj)), //系列化对象
			(newobj = JSON.parse(str)); //还原
	} else {
		for (let i in obj) {
			newobj[i] = typeof obj[i] === "object" ? copyObject(obj[i]) : obj[i];
		}
	}
	return newobj;
};
const numberFormat = (number, type) => {
	if (number > 10000) {
		let num = (number / 10000 + "").split(".");
		return `${num[0]}.${("" + num[1]).slice(0, 1)} 万`;
	} else {
		return parseFloat(number)
	}
};
// 截取图片上传字符串
const imgSubstr = val => {
	if (isEmpty(val)) return [];
	if (isArray(val)) {
		return val.map(e => {
			let index = e.indexOf("/uploads/");
			e = e.substring(index);
			return e;
		});
	} else {
		let index = val.indexOf("/uploads/");
		return val.substring(index);
	}
};

// 是否为数组
const isArray = arr => {
	return typeof arr == "object" && arr.constructor == Array;
};

// 是否为字符串
const isString = str => {
	return typeof str == "string" && str.constructor == String;
};

// 是否为对象
const isObject = obj => {
	return typeof obj == "object" && obj.constructor == Object;
};

// 是否为数字
const isNumber = num => {
	return typeof num == "number" && num.constructor == Number;
};

//是否金额
const isMoney = money =>{
	return /(^[1-9]([0-9]+)?(\.[0-9]{1,2})?$)|(^(0){1}$)|(^[0-9]\.[0-9]([0-9])?$)/.test(money)
}

// 是否为日期类型
const isDate = date => {
	return typeof date == "object" && date.constructor == Date;
};

// 是否为函数
const isFunction = obj => {
	return typeof obj == "object" && obj.constructor == Function;
};

const checkMobile = num => {
	return mobileReg.test(num);
};
const checkName = str => {
	return /^[\u4E00-\u9FA5A-Za-z\s]+(·[\u4E00-\u9FA5A-Za-z]+)*$/.test(str);
};

/** *
 * 检查登录
 * @parmas query 拼接得参数对象
 * @parmas isFrist 为true时开头为&
 */
export async function getCheckLogin() {
	let status = false;
	let token = uni.getStorageSync("token");
	if (token) {
		status = true;
	} else {
		// #ifdef H5
		if (isWxBrowser()) {
			let option = JSON.parse(uni.getStorageSync("currentQuery")) || {};
			console.log("option", option);
			// console.log('option', getMiniAppUrl(option, true))
			// return false
			location.href = `${CONSTANT.hostUrl}/auth/prepare?url=${encodeURIComponent(
				getMiniAppUrl(option, true)
			)}`;
		} else {
			// uni.showToast({
			// 	title: '请用微信浏览器打开！',
			// 	icon: 'none',
			// 	mask: true
			// })
		}
		// #endif
		// #ifndef H5
		// #endif
	}
	return status;
}

export const floatFormat = (f, n) => {
	let m = Math.pow(10, n);
	return parseInt(f * m, 10) / m;
};

/** *
 * 对象参数转为url参数
 * @parmas query 拼接得参数对象
 * @parmas isFrist 为true时开头为&
 */
export const parse = (query, isFrist = false) => {
	let str = Object.keys(query)
		.filter(key => !isEmpty(query[key]))
		.reduce((result, key) => {
			const value = query[key];
			// in查询特殊处理
			if (Array.isArray(value) && !isEmpty(value)) {
				return `${result}&${value.reduce(
					(val, cVal) => `${val ? `${val}&` : val}${key}=${cVal}`,
					""
				)}`;
			}

			// between查询做特殊处理
			if (typeof value === "object" && !isEmpty(value)) {
				const [start, end] = value;
				return `${result}&${key}[]=${start}&${key}[]=${end}`;
			}

			return `${result}&${key}=${value}`;
		}, "");
	return isFrist ? str : str.replace(/^&/, "?");
};

/** *
 * 全局时间转换
 * @parmas num 时间戳默认为11位时间戳
 * @parmas fmt 默认转换的时间格式
 * @parmas all 为true时time为13位时间戳
 */
export const $formatDate = (num, fmt = "YYYY-MM-DD HH:mm", all) => {
	num = all ? num : num * 1000;
	let date = new Date();
	date.setTime(num);
	let o = {
		"M+": date.getMonth() + 1,
		"D+": date.getDate(),
		"h+": date.getHours() % 12 === 0 ? 12 : date.getHours() % 12,
		"H+": date.getHours(),
		"m+": date.getMinutes(),
		"s+": date.getSeconds(),
		"q+": Math.floor((date.getMonth() + 3) / 3),
		S: date.getMilliseconds()
	};
	let week = {
		"0": "\u65e5",
		"1": "\u4e00",
		"2": "\u4e8c",
		"3": "\u4e09",
		"4": "\u56db",
		"5": "\u4e94",
		"6": "\u516d"
	};
	if (/(Y+)/.test(fmt)) {
		fmt = fmt.replace(
			RegExp.$1,
			(date.getFullYear() + "").substr(4 - RegExp.$1.length)
		);
	}
	if (/(E+)/.test(fmt)) {
		fmt = fmt.replace(
			RegExp.$1,
			(RegExp.$1.length > 1
				? RegExp.$1.length > 2
					? "\u661f\u671f"
					: "\u5468"
				: "") + week[date.getDay() + ""]
		);
	}
	for (let k in o) {
		if (new RegExp("(" + k + ")").test(fmt)) {
			fmt = fmt.replace(
				RegExp.$1,
				RegExp.$1.length === 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length)
			);
		}
	}
	return fmt;
};

/** *
 * 全局公共按钮跳转
 * @parmas item.funtion 为可执行函数
 * @parmas item.url 为跳转的路径
 * @parmas item.query 为跳转携带的参数
 * @parmas item.type 为跳转调用的函数 1为navigateTo, 2为redirectTo 关闭当前页面，跳转到应用内的某个页面 3为reLaunch 关闭所有页面，打开到应用内的某个页面  4为switchTab
 */
export const pageTo = item => {
	if (isNumber(item)) {
		uni.navigateBack({
			delta: item
		});
	}
	if (isString(item)) {
		uni.navigateTo({
			url: item
		});
		return false;
	}
	if (item.funtion) {
		item.funtion();
	}
	if (item.url) {
		let query = item.query ? parse(item.query) : "";
		let allUrl = `${item.url}${query}`;
		if (item.type == 2) {
			uni.redirectTo({
				url: allUrl
			});
		} else if (item.type == 3) {
			uni.reLaunch({
				url: allUrl
			});
		} else if (item.type == 4) {
			console.log("switchTab", item.query);
			uni.setStorageSync("switchTabQuery", item.query);
			uni.switchTab({
				url: item.url
			});
		} else {
			uni.navigateTo({
				url: allUrl
			});
		}
	}
};
/** *
 * 是否登录
 */
export const isLogin = () => {
	let token = uni.getStorageSync("token");
	if (token) {
		return true;
	}
	return false;
};
/**
	* 去重
	* 姜枫 2021.05.05
	* **/
export const unique = (arr) => {
	for(var i=0; i<arr.length; i++){
		for(var j=i+1; j<arr.length; j++){
			if(arr[i].classId==arr[j].classId){         //第一个等同于第二个，splice方法删除第二个
				arr.splice(j,1);
				j--;
			}
		}
	}
	return arr;
};
export default {
	isEmpty,
	copyObject,
	imgSubstr,
	isArray,
	parse,
	checkMobile,
	checkName,
	$formatDate,
	floatFormat,
	pageTo,
	isLogin,
	getCheckLogin,
	numberFormat,
	isString,
	unique,
	isMoney,
	isNumber
};