localStorage.checkInDate)); // string console.log(typeof (window.localStorage.checkOutDate)); // string 所以这句 if(window.localStorage.checkOutDate==null) 等价于 if ("null" == null) . 是不可能成立的。 另外建议楼主以后贴代码的时候,最好格式化。有用1 回复 neuvania: 感谢楼主,问题搞定,...
case 'n' :return new Date(Date.parse(dtTmp) + (60000 * Number)); case 'h' :return new Date(Date.parse(dtTmp) + (3600000 * Number)); case 'd' :return new Date(Date.parse(dtTmp) + (86400000 * Number)); case 'w' :return new Date(Date.parse(dtTmp) + ((86400000 * 7) *...
apply(Date, [null, 2016, 8, 5])); // good new Date(...[2016, 8, 5]);7.15 Functions with multiline signatures, or invocations, should be indented just like every other multiline list in this guide: with each item on a line by itself, with a trailing comma on the last item. ...
if(arrayOfTimes.length==2) {//如果没有秒钟,补上 使之成为 HH:mm:ss 格式 strTime=strTime+":00"; } if(CheckDate(strDate)==true)//调用子函数CheckDate {//校验日期部分正确 //if (CheckTime(strTime) == true) if(isTime(strTime)==true)//调用子函数isTime {returntrue;} else {returnfa...
if(numbers[i]==number){ return "0"+numbers[i]; }else if(i==9){ return number; } } } //得到当天时间 function getTodayTime(){ var days=["星期日","星期一","星期二","星期三","星期四","星期五","星期六"]; var today=new Date(); ...
It must return a promise for a Node.js Buffer object, or return null if the resource is intentionally not to be loaded. In general, most cases will want to delegate to super.fetch(), as shown. One of the options you will receive in fetch() will be the element (if applicable) that...
JavaScript 入门指南(全) 原文:Beginning JavaScript 协议:CC BY-NC-SA 4.0 一、JavaScript 简介 这些年来,avaScript 发生了很大变化。我们目前正处于一个 JavaScript 库的时代,你可以构建任何你想构建的东西。JavaScri
create("div", null, dom.byId("map")) }); var map = new Map("map", { extent: initExtent, infoWindow: infoWindow }); ...}); <Boolean> isClickRecenter Optional Indicates whether to enable double-click on a map to recenter and zoom in a level by using SHIFT + Click. <Boolean...
String|null|undefined The time zone that dates are stored in. MapImageLayer datesInUnknownTimezone Boolean This property is set by the service publisher and indicates that dates should be considered without the local timezone. MapImageLayer declaredClass String The name of the class. Accessor dpi...
getDaysDiffBetweenDates(new Date('2019-01-01'), new Date('2019-10-14')); // 286 5.is:检查值是否为特定类型。 const is = (type, val) => ![, null].includes(val) && val.constructor === type; is(Array, [1]); // true ...