I have the following Code in PHP if($row["phone"]) $phone = $row["phone"]; else $phone = $row["mobile"]; In JavaScript I could simply write phone = row.phone || row.mobile; which is much easier to write, and looks much better. If I try the same in PHP it would simply return true $phone = $row["phone"] || $row["mobile"]; echo $phone; // 1 Is there any operator in PHP that offers me
我在PHP中有以下代码 if($row["phone"]) $phone = $row["phone"]; else $phone = $row["mobile"]; 在JavaScript中我可以简单地写 phone = row.phone || row.mobile; 写起来更容易,而且看起来好多了。 如果我在PHP中尝试相同,它会简单地返回true $phone = $row["phone"] || $row["mobile"]; echo $phone; // 1 PHP中是否有任何运算符为我提供与JavaScript中相同的功能? 我尝试了按位或| ,但只有有时有效,有
Im trying to pass and return an array to and from a php script, I've tested the json_ecode portion and its working but I can't get the json_decode on the php side. Javascript scid_list = []; $('.filter_on').each(function(){scid_list.push($(this).data("scid"));}); $.ajax({ type: "POST", dataType: "json", data: {scid_list:scid_list}, url: "/script
我试图传递并返回一个数组和PHP脚本,我已经测试了json_ecode部分和它的工作,但我无法获得PHP方面的json_decode。 使用Javascript scid_list = []; $('.filter_on').each(function(){scid_list.push($(this).data("scid"));}); $.ajax({ type: "POST", dataType: "json", data: {scid_list:scid_list}, url: "/scripts/products_filter.php", success: function(data){
So this is the umteenth revenge of the "how do I get 3rd party cookies to work in Safari" question but I'm asking again because I think the playing field has changed, perhaps after February 2012. One of the standard tricks to get 3rd party cookies in Safari was as follows: use some javascript to POST to a hidden iframe. It (used to) trick Safari into thinking that the user had inte
所以这是“如何获得第三方cookie在Safari上工作”的第十八次报复,但我再次提出要求,因为我认为赛场已经发生了变化,可能在2012年2月之后。获得第三名的标准技巧之一Safari中的第三方cookie如下所示:使用一些JavaScript将POST发送到隐藏的iframe。 它(用来)诱使Safari认为用户与第三方内容进行了交互,然后允许设置cookie。 我认为这个漏洞已经在轻微的丑闻之后被封闭,因为它揭露了谷歌在广告中使用该技巧。 至少,在使用
I have two or more javascript objects. I want to merge them adding values of common properties and then sort them in descending order of values. eg var a = {en : 5,fr: 3,in: 9} var b = {en: 8,fr: 21,br: 8} var c = merge(a,b) c should then be like this: c = { fr: 24, en: 13, in:9, br:8 } ie both objects are merge, values of common keys are added and then keys are sorted. Here's what
我有两个或更多的JavaScript对象。 我想合并它们添加公共属性的值,然后按值的降序对它们进行排序。 例如 var a = {en : 5,fr: 3,in: 9} var b = {en: 8,fr: 21,br: 8} var c = merge(a,b) c应该是这样的: c = { fr: 24, en: 13, in:9, br:8 } 即两个对象都是合并的,共同的键的值被添加,然后键被排序。 以下是我所尝试的: var a = {en : 5,fr: 3,in: 9} var b = {en: 8,fr: 21,br: 8} c = {} // copy common val
My understanding of Comet is that its a server-side AJAX request. My understanding of Long Polling ("Push") is that it is also a server-side AJAX request. My understanding of WebSockets is that they are a two-way AJAX request. If any of these are wrong, please begin by correcting me! Assuming I'm more or less correct, is it true that these are all just AJAX (JavaScript using X
我对Comet的理解是它的服务器端AJAX请求。 我对长轮询 (“Push”)的理解是它也是服务器端的AJAX请求。 我对WebSockets的理解是它们是一个双向的AJAX请求。 如果其中任何一个都是错误的,请首先纠正我! 假设我或多或少正确的,这是真的,这些都只是AJAX(JavaScript的使用XmlHttpRequest引擎盖下的对象)? 如果它们不仅仅是AJAX调用,那么如何在客户端(通过JavaScript)和服务器(使用类似Java的东西)中实现它们? 提
I have a slice/segment of a circle and want to animate it morphing into a new complete circle with a 'biological' feel to it. By biological I mean a way other than increasing the arc-length of the segment. How can I get the kind of animation you would get if tweening a square to a circle in Flash, but in Canvas JS? Have you heard of the Raphael JavaScript library? Here's an exam
我有一个切片/一段圆,想要将它变成一个具有“生物”感的新的完整圆。 通过生物学,我的意思是增加分段弧长的方式。 如果在Flash中将方块补间为圆形,但在Canvas JS中如何获得动画类型? 你听说过Raphael JavaScript库吗? 这是一个例子。 我认为这正是你所描述的。 http://raphaeljs.com/animation.html
I am looking for a descriptive way to document the used data structures in my JavaScript application. I find it hard to get this done due to the dynamic character of JavaScript. For instance, what could be a good way to tell, that a used variable distance is a two-dimensional array with length i and j and stores numbers between -1 and MAX_INT . I could think of something like this: distance[
我正在寻找一种描述性的方式来记录我的JavaScript应用程序中使用的数据结构。 由于JavaScript的动态特性,我很难完成这项工作。 例如,有一个很好的方法可以告诉,使用的变量距离是一个长度为i和j的二维数组,存储的数值介于-1和MAX_INT之间。 我可以想到这样的事情: distance[i][j] = -1 <= n <= MAX_INT 一个用作某种数据类型的地图/字典的对象呢,一个数组的第一个元素定义了其他数据,然后是其他数据的二维数组
This question already has an answer here: How to escape single quotes within single quoted strings? 19 answers 你可以像这样逃避你的字符串: div.innerHTML ='<div id="link"><input type="button" onclick="location.href='http://www.google.com/';"/></div>';
这个问题在这里已经有了答案: 如何在单引号字符串中转义单引号? 19个答案 你可以像这样逃避你的字符串: div.innerHTML ='<div id="link"><input type="button" onclick="location.href='http://www.google.com/';"/></div>';
I have an ASP.NET application and a UTC time stamp on the server. I want to display the time stamp to the user in the right time zone and using local date/time format. Eg Jan 2, 2012 14:00:00 UTC should show as 1/2/2012 9:00 AM to a user in New York, United States (UTC -0500) and as 02/01/2012 14:00 to a user in London, UK. This seemingly simple task proved to be surprisingly difficult. MSD
我有一个ASP.NET应用程序和服务器上的UTC时间戳。 我想在适当的时区向用户显示时间戳,并使用本地日期/时间格式。 例如Jan 2, 2012 14:00:00 UTC应显示给用户在纽约,美国(UTC -0500)和Jan 2, 2012 14:00:00 UTC 02/01/2012 14:00至用户1/2/2012 9:00 AM在英国伦敦。 这看似简单的任务证明是非常困难的。 MSDN有一篇具有相同标题的文章,但它讨论了解析用户输入而不是显示服务器端数据,因此它不能完全适用。 时区偏移
这是一个故意的设计决定还是我们当前浏览器的问题,这些浏览器将在未来版本中纠正? JavaScript does not support multi-threading because the JavaScript interpreter in the browser is a single thread (AFAIK). Even Google Chrome will not let a single web page's JavaScript run concurrently because this would cause massive concurrency issues in existing web pages. All Chrome does is separate multiple
这是一个故意的设计决定还是我们当前浏览器的问题,这些浏览器将在未来版本中纠正? JavaScript不支持多线程,因为浏览器中的JavaScript解释器是单线程(AFAIK)。 即使Google Chrome也不会让单个网页的JavaScript同时运行,因为这会在现有网页中导致大量的并发问题。 所有的Chrome都将单独的多个组件(不同的标签页,插件等等)分成独立的进程,但我无法想象一个页面有多个JavaScript线程。 但是,您可以按照建议使用setTim