386 lines
9.4 KiB
JavaScript
386 lines
9.4 KiB
JavaScript
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var funProto = Function.prototype;
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var objProto = Object.prototype;
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var getPrototypeOf = Object.getPrototypeOf;
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var objToString = objProto.toString;
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var hasOwnProperty = objProto.hasOwnProperty;
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var funToString = funProto.toString;
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// 获取 url 参数集合
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export const getUrlParams = function (url) {
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url = url || window.location.href;
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var index = url.indexOf("?");
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var result = {};
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if(index !== -1){
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var str = url.substr(index + 1, url.length - index - 1);
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var parts = str.split("&");
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for(var i = 0, length = parts.length; i < length; i++){
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var part = parts[i];
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var item = part.split("=");
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var key = item[0];
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var value = item[1];
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result[key] = decodeURIComponent(value);
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}
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}
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return result;
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}
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export const setTitle = (title)=>{
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// #ifdef H5
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// document.title=title
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uni.setNavigationBarTitle({
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title,
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});
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// console.log('===========ssss',title)
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// #endif
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// #ifndef H5
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uni.setNavigationBarTitle({
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title,
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});
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// #endif
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}
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export const decimalPlaces = (num)=>{
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let newNum = num.toString().split('.')[1]
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if(newNum&&newNum.length>2){
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return num.toFixed(2)
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}else {
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return num
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}
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}
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export const formatYAxisNumber = (num)=>{
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if(num>1000000){
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return decimalPlaces((num/1000000)) + '百万';
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}else if(num>10000){
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return decimalPlaces((num/10000)) + '万';
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}else if(num>1000){
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return decimalPlaces((num/1000)) + '千';
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}else {
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return decimalPlaces(num)
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}
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}
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// // 深度克隆 array 数组或 json 对象，返回克隆后的副本
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export const deepClone = function(obj){
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let weakMap = new WeakMap()
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function clone (obj){
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if(!isArray(obj) && !isPlainObject(obj)){
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return obj;
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}
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if(obj instanceof Date){ return new Date(obj) }
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if(obj instanceof RegExp){ return new RegExp(obj)}
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if(weakMap.get(obj)){
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return weakMap.get(obj)
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}
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// var copy = utils.isArray(obj) ? [] : {};
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var copy = new obj.constructor
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weakMap.set(obj,copy)
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for(var key in obj){
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if(hasOwnProperty.call(obj, key)){
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var value = obj[key];
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copy[key] = clone(value);
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}
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}
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return copy;
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}
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return clone (obj)
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};
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/**
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* 获取不含子菜单的第一个菜单项
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* @param {Array} data 菜单数据
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*/
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export const getMenuWithoutChildren = function (data){
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var target;
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for(var i = 0, length = data.length; i < length; i++){
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var element = data[i];
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if(element.children){
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target = getMenuWithoutChildren(element.children);
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}
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else{
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target = element;
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}
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if(target){
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break;
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}
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}
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console.log('target',target)
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return target;
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}
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/**
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*
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*/
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export const getChildrenMenu = function (data) {
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var target = data[0]||{};
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let arr = [target]
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function deep(){
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if(target.children){
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target = target.children[0]
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arr.push(target)
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deep()
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}
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}
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deep()
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if(arr.length===1){
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let item = arr[0]
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item.isFlop = 1 // 是否是翻牌器
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return [item];
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}else{
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let item = arr[arr.length-2]
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item.children1 = item.children
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item.isFlop = 1 // 是否是翻牌器
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delete item.children
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return item.children1;
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}
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}
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/**
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* 将英文字段名称转为中文标题
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* @param {Array} columns 字段配置
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* @param {String} name 英文字段名称
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*/
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export const getChartLegend = function(columns, name){
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try{
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columns = JSON.parse(columns);
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var column = columns.find(function(column){
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return column.dataIndex === name;
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});
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return column && column.title ? column.title : name;
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}
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catch(e){
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return name;
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}
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};
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export const debounce = function(fn, delay) {
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// 定时器
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let timer = null
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// 将debounce处理结果当作函数返回
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return function () {
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// 保留调用时的this上下文
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let context = this
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// 保留调用时传入的参数
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let args = arguments
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// 每次事件被触发时，都去清除之前的旧定时器
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if(timer) {
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clearTimeout(timer)
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}
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// 设立新定时器
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timer = setTimeout(function () {
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fn.apply(context, args)
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}, delay)
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}
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}
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export const throttle = function(fn, interval) {
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// last为上一次触发回调的时间
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let last = 0
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// 将throttle处理结果当作函数返回
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return function() {
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// 保留调用时的this上下文
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let context = this
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// 保留调用时传入的参数
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let args = arguments
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// 记录本次触发回调的时间
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let now = +new Date()
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// 判断上次触发的时间和本次触发的时间差是否小于时间间隔的阈值
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if (now - last >= interval) {
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// 如果时间间隔大于我们设定的时间间隔阈值，则执行回调
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last = now;
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fn.apply(context, args);
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}
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}
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}
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// 检查给定的值是否是数值
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export const isNumber = function (value) {
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return objToString.call(value) === "[object Number]";
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};
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export const toLocaleString = function(value, toFixed){
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if(!isNumber(value)){
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return value;
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}
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if(toFixed){
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value = value.toFixed(toFixed);
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value = value.split(".");
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var integer = value[0];
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var decimal = value[1];
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integer = String(integer).replace(/\B(?=(\d{3})+(?!\d))/g, ",");
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return integer + "." + decimal;
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}
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else{
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return String(value).replace(/\B(?=(\d{3})+(?!\d))/g, ",");
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}
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};
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// 判断日期、时间、日期时间格式
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export const check = {
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date: function(value){
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return /^[1-9]\d{3}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/.test(value);
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},
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time: function(value){
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return /^(20|21|22|23|[0-1]\d):[0-5]\d:[0-5]\d$/.test(value);
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},
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datetime: function(value){
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return /^[1-9]\d{3}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])\s+(20|21|22|23|[0-1]\d):[0-5]\d:[0-5]\d(.0)?$/.test(value);
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},
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integer: function(value){
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return /^-?\d+$/.test(value);
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},
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decimal: function(value){
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return /^-?\d+\.\d+$/.test(value);
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}
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};
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// 检查给定的值是否是纯对象，纯对象是指通过 {} 或 new Object() 声明的对象
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export const isPlainObject = function(value) {
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if (!value || objToString.call(value) !== "[object Object]") {
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return false;
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}
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var prototype = getPrototypeOf(value);
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if (prototype === null) {
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return true;
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}
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var constructor = hasOwnProperty.call(prototype, "constructor") && prototype.constructor;
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return typeof constructor === "function" && funToString.call(constructor) === funToString.call(Object);
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};
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// 检查给定的值是否是数组
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export const isArray = function(value) {
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return objToString.call(value) === "[object Array]";
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};
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export const deleteArray = function (arr,value) {
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let index = arr.indexOf( value )
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arr.splice(index,1)
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return arr.join(',')
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}
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// 检查给定的值是否是字符串
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export const isString = function(value) {
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return objToString.call(value) === "[object String]";
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};
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let utils = {};
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// 日期操作
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utils.date = {
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parse: function(){
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var args = arguments, date = null;
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if(args.length == 0){
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date = new Date();
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}
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else if(args.length == 1){
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if(isString(args[0])){
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date = new Date(args[0].replace(/-/g, "/"));
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}
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else if(isNumber(args[0])){
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date = new Date(args[0]);
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}
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}
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else if(args.length == 3){
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date = new Date(args[0], args[1], args[2]);
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}
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return date;
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},
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timestamp: function(date){
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date = this.parse(date);
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return date.getTime();
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},
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format: function(date, format){
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date = this.parse(date);
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var model = {
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"M+": date.getMonth()+1,
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"d+": date.getDate(),
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"h+": date.getHours() == 12 ? 12 : date.getHours() % 12,
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"H+": date.getHours(),
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"m+": date.getMinutes(),
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"s+": date.getSeconds(),
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"S": date.getMilliseconds(),
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"q+": Math.floor((date.getMonth() + 3) / 3)
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};
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var week = {
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"0": "/u65e5",
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"1": "/u4e00",
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"2": "/u4e8c",
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"3": "/u4e09",
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"4": "/u56db",
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"5": "/u4e94",
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"6": "/u516d"
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};
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if(/(y+)/.test(format)){
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format = format.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
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}
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if(/(E+)/.test(format)){
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format = format.replace(RegExp.$1, ((RegExp.$1.length > 1) ? (RegExp.$1.length > 2 ? "/u661f/u671f" : "/u5468") : "") + week[date.getDay() + ""]);
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}
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for(var key in model){
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if(new RegExp("(" + key + ")").test(format)){
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format = format.replace(RegExp.$1, (RegExp.$1.length == 1) ? (model[key]) : (("00" + model[key]).substr(("" + model[key]).length)));
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}
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}
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return format;
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},
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plus: function(date, value){
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date = this.parse(date);
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date = date.getTime();
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date = date + parseInt(value) * 24 * 60 * 60 * 1000;
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return date;
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},
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minus: function(date, value){
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date = this.parse(date);
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date = date.getTime();
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date = date - parseInt(value) * 24 * 60 * 60 * 1000;
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return date;
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}
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};
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export {utils}
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