Since localStorage (currently) only supports strings as values, and in order to do that the objects need to be stringified (stored as JSON-string) before they can be stored, is there a defined limitation regarding the length of the values. Does anyone know if there is a definition which applies to all browsers? Quoting from the Wikipedia article on Web Storage: Web storage can be viewed sim
由于localStorage （当前）仅支持将字符串作为值，并且为了这样做，在存储对象之前需要将对象字符串化（存储为JSON字符串），是否存在对值长度的限定。 有谁知道是否有适用于所有浏览器的定义？ 从维基百科文章引用Web存储： Web存储可以简单地看作是对cookie的改进，提供更大的存储容量（ 谷歌浏览器中的每个来源10 MB（https://plus.google.com/u/0/+FrancoisBeaufort/posts/S5Q9HqDB8bh），Mozilla Firefox ，Opera; In
我怎样才能从这个日期对象在JavaScript中生成月份的名称（例如：10月/ 10月）？ var objDate = new Date("10/11/2009"); 较短的版本： const monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ]; const d = new Date(); document.write("The current month is " + monthNames[d.getMonth()]); It is now possible to do this wi
我怎样才能从这个日期对象在JavaScript中生成月份的名称（例如：10月/ 10月）？ var objDate = new Date("10/11/2009"); 较短的版本： const monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ]; const d = new Date(); document.write("The current month is " + monthNames[d.getMonth()]); 现在可以使用ECMAScript Internat
This question already has an answer here: Difference between two dates in years, months, days in JavaScript 14 answers 希望这可以帮助你// Set the unit values in milliseconds. var msecPerMinute = 1000 * 60; var msecPerHour = msecPerMinute * 60; var msecPerDay = msecPerHour * 24; // Set a date and get the milliseconds var date = new Date('6/15/1990'); var dateMsec = date.getTime(); // Set
这个问题在这里已经有了答案： JavaScript中的两个日期在几年，几个月，几天之间的区别14个答案 希望这可以帮助你// Set the unit values in milliseconds. var msecPerMinute = 1000 * 60; var msecPerHour = msecPerMinute * 60; var msecPerDay = msecPerHour * 24; // Set a date and get the milliseconds var date = new Date('6/15/1990'); var dateMsec = date.getTime(); // Set the date to January 1, at mi
This question already has an answer here: How do I get the number of days between two dates in JavaScript? 31 answers var oneDay = 24*60*60*1000; // hours*minutes*seconds*milliseconds var firstDate = new Date(2008,01,12); var secondDate = new Date(2008,01,22); var diffDays = Math.round(Math.abs((firstDate.getTime() - secondDate.getTime())/(oneDay))); 这是一个这样的功能： function days_betwee
这个问题在这里已经有了答案： 我如何获得JavaScript中两个日期之间的天数？ 31个答案 var oneDay = 24*60*60*1000; // hours*minutes*seconds*milliseconds var firstDate = new Date(2008,01,12); var secondDate = new Date(2008,01,22); var diffDays = Math.round(Math.abs((firstDate.getTime() - secondDate.getTime())/(oneDay))); 这是一个这样的功能： function days_between(date1, date2) { // The number
How do I get the number of days between two dates in JavaScript? For example, given two dates in input boxes: <input id="first" value="1/1/2000"/> <input id="second" value="1/1/2001"/> <script> alert(datediff("day", first, second)); // what goes here? </script> Here is a quick and dirty implementation of datediff , as a proof of concept to solve the problem as presen
我如何获得JavaScript中两个日期之间的天数？ 例如，给定输入框中的两个日期： <input id="first" value="1/1/2000"/> <input id="second" value="1/1/2001"/> <script> alert(datediff("day", first, second)); // what goes here? </script> 这里是一个快速和肮脏的实施datediff ，作为概念验证作为问题提出来解决这个问题。 它依赖于这样的事实，即可以通过减去两个日期之间的时间间隔来获取
I'm writing an equipment rental application where clients are charged a fee for renting equipment based on the duration (in days) of the rental. So, basically, (daily fee * number of days) = total charge. For instant feedback on the client side, I'm trying to use Javascript to figure out the difference in two calendar dates. I've searched around, but nothing I've found is quit
我正在写设备租赁申请，根据租赁期限（以天计），向客户收取设备租赁费用。 所以，基本上（每日费用*天数）=总费用。 对于客户端的即时反馈，我试图用Javascript来计算两个日历日期的差异。 我搜索了四周，但没有找到我正在寻找的东西。 我见过的大多数解决方案都是这样形式的： function dateDiff1(startDate, endDate) { return ((endDate.getTime() - startDate.getTime()) / 1000*60*60*24); } 我的问题是，设备
I'm getting a date from a string, parsing it to get the day, month and year constituants and use these to instance a Date object. What I am trying to achieve is to increment the date by one day. It all works fine except that the setDate method insists on returning me invalid dates sometimes... For example, if I add 1 day to the 28th February 2011, it will return me 29th February 2011...
我从字符串中获取日期，解析它得到日期，月份和年份的构成词，并使用它们来实例化Date对象。 我试图实现的是将日期递增一天。 这一切都工作正常，但setDate方法坚持有时返回无效日期... 例如，如果我在2011年2月28日增加1天，它将返回我2011年2月29日...实际上不存在的日期。 这是JavaScript的原生日期/时间API的错误/限制，还是我只是做错了什么？ 我发现很难相信它没有检查日期的有效性就表现出这种行为。 var myDate
I have a requirement in which I am rendering view in which I display a form. On submit of form i need to gather the form data and create a file and save form data as JSON in that file. I am using React.js, node.js, babel and webpack. After struggling a bit to achieve this I figured out that I have to use isomorphic or universal javascript ie use react and render on server side as we cannot us
我有一个要求，我正在渲染视图，在其中显示一个表单。 在提交表单时，我需要收集表单数据并创建一个文件并将表单数据保存为该文件中的JSON。 我正在使用React.js，node.js，babel和webpack。 在努力实现这一点之后，我发现我必须使用同构或通用JavaScript，即在服务器端使用react和render，因为我们无法在客户端使用fs模块。 将其称为服务器端。 我运行它使用： npm run start 在此之后，我可以在控制台中看到[Object O
I am working on express js and I need to redirect to a page which needs authentication. This is my code: router.get('/ren', function(req, res) { var username = 'nik', password = 'abc123', auth = 'Basic ' + new Buffer(username + ':' + password).toString('base64'); res.redirect('http://localhost:3000/api/oauth2/authorize'); }) How can I set headers to this redirect comma
我正在使用express js，我需要重定向到需要验证的页面。 这是我的代码： router.get('/ren', function(req, res) { var username = 'nik', password = 'abc123', auth = 'Basic ' + new Buffer(username + ':' + password).toString('base64'); res.redirect('http://localhost:3000/api/oauth2/authorize'); }) 我该如何设置标题到这个重定向命令？ 如果您使用301（永久移动）或302（找到）重定
I want to be able to inject elements to a container – say, list items to a list – individually and at any given time, but only once. I'm aware that I can inject into specific positions using .append() , .wrap() and other DOM insertion techniques. As suggested here. But what to do if I don't know the order in which the user chooses to inject them (if at all) ? Sure, I can create a wh
我希望能够在一个容器中注入元素 - 比如说，将项目列入列表中 - 在任何给定的时间单独注入，但只能注入一次。 我知道我可以使用.append() .wrap()和其他DOM插入技术注入特定位置。 如这里所建议的。 但如果我不知道用户选择注入它们的顺序（如果有的话）该怎么办？ 当然，我可以创建一个完整的自制方法来授予正确的顺序，而且......我的实际问题是，如果存在定义本机或语义顺序的HTML属性。 类似于role属性如何为元素提供