This question already has an answer here: Why doesn't indexOf work on an array IE8? 7 answers Because IE8 doesn't have an indexOf() method for arrays. You'll have to include a polyfill. Take a look at this post for an example. if (!Array.prototype.indexOf) { Array.prototype.indexOf = function(elt /*, from*/) { var len = this.length >>> 0; var from = Numbe
这个问题在这里已经有了答案: 为什么indexOf不能在数组IE8上工作? 7个答案 因为IE8没有用于数组的indexOf()方法。 你将不得不包含一个polyfill。 看看这个帖子的例子。 if (!Array.prototype.indexOf) { Array.prototype.indexOf = function(elt /*, from*/) { var len = this.length >>> 0; var from = Number(arguments[1]) || 0; from = (from < 0) ? Math.ceil(from)
This question already has an answer here: Why doesn't indexOf work on an array IE8? 7 answers IE8 Arrays does not support the method indexOf You can refer to this SO Question, and extend the Array Prototype Why doesn't indexOf work on an array IE8? In other words: just add the code of that question answer before your call (maybe at the top of your js file) // the one that star
这个问题在这里已经有了答案: 为什么indexOf不能在数组IE8上工作? 7个答案 IE8数组不支持indexOf方法 你可以参考这个SO问题,并扩展数组原型 为什么indexOf不能在数组IE8上工作? 换句话说:只需在你的调用之前添加问题答案的代码(也许在你的js文件的顶部) // the one that starts with: Array.prototype.indexOf = function(elt /*, from*/) IE8 JScript引擎没有indexOf
Possible Duplicate: Why doesn't indexOf work on an array IE8? I recently developed a script that uses native Javascript and jQuery. Most of my development has been with IE 9, Chrome, Firefox. For all of them the line below works perfectly: if(data.cols.indexOf("footprint") < 0) However today I pushed a bit of my code to a production system and a couple of the clients have come back
可能重复: 为什么indexOf不能在数组IE8上工作? 我最近开发了一个使用本地Javascript和jQuery的脚本。 我的大部分开发工作都是使用IE 9,Chrome,Firefox。 对于他们所有人来说,下面的线条都是完美的: if(data.cols.indexOf("footprint") < 0) 然而今天,我将一些代码推到了一个生产系统上,一些客户回来说他们的页面已经损坏。 我将搜索范围缩小到了indexOf ,显然IE8并不喜欢它。 所以我试图找到一个替代方案
This question already has an answer here: Why doesn't indexOf work on an array IE8? 7 answers When you take a look at MDN's Array.indexOf Article, You will see that indexOf is a recent addition to the ECMA-262 standard; as such it may not be present in all browsers. You can work around this by utilizing the following code at the beginning of your scripts. This will allow you to
这个问题在这里已经有了答案: 为什么indexOf不能在数组IE8上工作? 7个答案 当你看一下MDN的Array.indexOf文章时,你会看到这一点 indexOf是ECMA-262标准的新增内容; 因此它可能不会出现在所有浏览器中。 您可以通过在脚本开始处使用以下代码来解决此问题。 这将允许您在没有本地支持的情况下使用indexOf。 此算法与ECMA-262第5版中指定的算法相匹配,假定Object,TypeError,Number,Math.floor,Math.abs和Math.ma
If you have worked with JavaScript at any length you are aware that Internet Explorer does not implement the ECMAScript function for Array.prototype.indexOf() [including Internet Explorer 8]. It is not a huge problem, because you can extend the functionality on your page with the following code. Array.prototype.indexOf = function(obj, start) { for (var i = (start || 0), j = this.length; i
如果您已经使用过任意长度的JavaScript,则您知道Internet Explorer不会为Array.prototype.indexOf()[包括Internet Explorer 8]实现ECMAScript函数。 这不是一个大问题,因为您可以使用下面的代码扩展页面上的功能。 Array.prototype.indexOf = function(obj, start) { for (var i = (start || 0), j = this.length; i < j; i++) { if (this[i] === obj) { return i; } } return -1; } 我应该什
I am wanting to print labels from a Brother Label Printer from a web browser. I know DYMO has a JavaScript framework that makes printing from the browser simple. But I have customers with a Brother label printer so I need to make it work. I've been doing some testing and some searching and it's surprising how little information is out there on this subject. So far the only browser I
我想从网络浏览器打印来自Brother Label Printer的标签。 我知道DYMO有一个JavaScript框架,可以使浏览器的打印变得简单。 但我有一台Brother打印机的客户,所以我需要让它工作。 我一直在做一些测试和一些搜索,这很令人惊讶,关于这个主题的信息很少。 到目前为止,我唯一成功的浏览器是谷歌浏览器,因为它似乎不打印页眉和页脚。 我已经安装了打印机/驱动程序,并创建了一个尺寸为62 x 29毫米的自定义纸张尺寸。 当
I'd like to detect in a web page when the user selects some text by dragging. However, there's one scenario in Windows which I'm calling a "double-click-drag" (sorry if there's already a better name I don't know) and I can't figure out how to detect it. It goes like this: press mouse button quickly release mouse button quickly press mouse button again d
我想在用户通过拖动选择一些文本时在网页中检测到。 但是,在Windows中有一种情况叫做“双击 - 拖动”(对不起,如果已经有一个更好的名字我不知道),我无法弄清楚如何检测它。 它是这样的: 按鼠标按钮 快速释放鼠标按钮 再次快速按下鼠标按钮 按住按钮拖动 这会导致拖动来选择整个单词。 从用户的角度来看,这是一个非常有用的技术。 我想要做的是告诉双击拖动和点击后单独拖动的区别。 所以,当我到达第2步时
I am currently looking to calculate a custom date in JavaScript and my head is beginning to hurt thinking about it. I have a countdown clock that is to start every other Tuesday at 12pm. I have the countdown function working properly using the jQuery countdown plugin by Keith Wood but need assistance in calculating every other Tuesday of the month and having it reset on this day. All help is
我目前正在计算一个JavaScript中的自定义日期,我的脑袋开始伤害它的思考。 我有一个倒数计时钟,是在星期二下午12点开始的。 使用Keith Wood的jQuery倒计时插件,我可以正常使用倒计时功能,但在计算每月的其他星期二并在当天重置时需要帮助。 所有帮助一如既往地受到高度赞赏。 Thansk提前 我必须做类似的事情(不是在JS中,但算法足够相似) 现在,在我开始之前,澄清我认为这是每两周发生一次,无论月份的长度如何
From the server I get a datetime variable in this format: 6/29/2011 4:52:48 PM and it is in UTC time. I want to convert it to the current user's browser time using JavaScript. How this can be done using JavaScript or jQuery? 在将其转换为javascript中的日期之前,将“UTC”附加到字符串: var date = new Date('6/29/2011 4:52:48 PM UTC'); date.toString() // "Wed Jun 29 2011 09:52:48 GMT-0700 (PDT)
从服务器中,我得到这种格式的日期时间变量: 6/29/2011 4:52:48 PM ,它是UTC时间。 我想使用JavaScript将其转换为当前用户的浏览器时间。 如何使用JavaScript或jQuery完成这项工作? 在将其转换为javascript中的日期之前,将“UTC”附加到字符串: var date = new Date('6/29/2011 4:52:48 PM UTC'); date.toString() // "Wed Jun 29 2011 09:52:48 GMT-0700 (PDT)" 这是一个通用的解决方案: function convertUTCDateToLoc
Suppose a user of your website enters a date range. 2009-1-1 to 2009-1-3 You need to send this date to a server for some processing, but the server expects all dates and times to be in UTC. Now suppose the user is in Alaska or Hawaii or Fiji. Since they are in a timezone quite different from UTC, the date range needs to be converted to something like this: 2009-1-1T8:00:00 to 2009-1-4T7:59:
假设您网站的用户输入日期范围。 2009-1-1 to 2009-1-3 您需要将此日期发送到服务器以进行一些处理,但服务器预计所有日期和时间均为UTC。 现在假设用户在阿拉斯加或夏威夷或斐济。 由于它们的时区与UTC完全不同,因此日期范围需要转换为如下所示的内容: 2009-1-1T8:00:00 to 2009-1-4T7:59:59 使用JavaScript Date对象,您如何将第一个“本地化”日期范围转换为服务器将理解的内容? 您需要的格式是使用.toISOString()