I am using a Direct Web Remoting (DWR) JavaScript library file and am getting an error only in Safari (desktop and iPad) It says Maximum call stack size exceeded. What exactly does this error mean and does it stop processing completely? Also any fix for Safari browser (Actually on the iPad Safari , it says JS:execution exceeded timeout which I am assuming is the same call stack issue)
我正在使用Direct Web Remoting（DWR）JavaScript库文件，并且仅在Safari（台式机和iPad）中出现错误， 它说 最大调用堆栈大小超出。 这个错误究竟意味着什么，它会完全停止处理吗？ 此外， Safari浏览器的任何修补程序（实际上在iPad Safari ，它说 JS：执行超时超时 我正在假设是相同的调用堆栈问题） 这意味着在你的代码中的某个地方，你正在调用一个函数，然后调用另一个函数等，直到你达到调用栈的限制。
What is the best way to implement a Stack and a Queue in JavaScript? I'm looking to do the shunting-yard algorithm and I'm going to need these data-structures. var stack = []; stack.push(2); // stack is now [2] stack.push(5); // stack is now [2, 5] var i = stack.pop(); // stack is now [2] alert(i); // displays 5 var queue = []; queue.push(2); // queue is
在JavaScript中实现堆栈和队列的最佳方式是什么？ 我正在寻找分流码算法，我将需要这些数据结构。 var stack = []; stack.push(2); // stack is now [2] stack.push(5); // stack is now [2, 5] var i = stack.pop(); // stack is now [2] alert(i); // displays 5 var queue = []; queue.push(2); // queue is now [2] queue.push(5); // queue is now [2, 5] var i = queue.shift()
Programming languages like Java / C has int, long , byte etc that suggest interpreter exactly how much memory it should allocate for a number at run-time . This saves a lot of memory if you are dealing with large number of variables. I'm wondering how programming languages , who doesn't have this primitive variable type declaration (JavaScript , Ruby) , decides how much memory to alloc
像Java / C这样的编程语言有int，long，byte等，它们建议在运行时准确地为一个数字分配多少内存。 如果你处理大量的变量，这将节省大量的内存。 我想知道没有这个原始变量类型声明（JavaScript，Ruby）的编程语言如何决定分配多少内存让var a = 1 。 如果它分配让我们说1个字节，然后在下一行，如果我做a = 99999999999 ，它将不得不滑出该变量并重新分配。 这不是一个昂贵的操作吗？ 或者他们为所有变量分配一个非常大的
Can someone give a clear definition together with a simple example that explains what is a "callback hell" for someone who does not know JavaScript and node.js ? When (in what kind of settings) does the "callback hell problem" occur? Why does it occur? Is "callback hell" always related to asynchronous computations? Or can "callback hell" occur also
有人可以给出一个清晰的定义和一个简单的例子，解释什么是不知道JavaScript和node.js的人的“回拨地狱”？ 什么时候（在什么样的设置下）发生“回拨地狱问题”？ 为什么会发生？ “回调地狱”总是与异步计算相关吗？ 或者也可以在单线程应用程序中“回调地狱”？ 我在Coursera参加了Reactive Course，Erik Meijer在他的一次演讲中表示，RX解决了“回拨地狱”的问题。 我问在Coursera论坛上什么是“回拨地狱”，但我没有明确的答案
I'm trying to get the selector used to call the current script, but of course the property I need was removed for some reason. Is there a workaround for this? Here's basically what I want to accomplish: (function($) { $.fn.myplugin = function(options) { return this.each(function() { console.log($(this).selector); }); } }(jQuery)); //Somwehere else:
我试图让选择器用于调用当前脚本，但当然由于某些原因，我需要的属性被删除。 有没有解决方法？ 这基本上是我想完成的： (function($) { $.fn.myplugin = function(options) { return this.each(function() { console.log($(this).selector); }); } }(jQuery)); //Somwehere else: $('.theClassISelected').myplugin(); //Should console.log('.theClassISelected') 我需要在.theCl
I use ng-click to show details of an item in a list and also I attach jQuery mobile swipe event to the list item to show delete button when a user swipes to the left. The problem is that when I swipe on the element, it doesn't only emit swipe event, but click event as well. So, when I want to swipe to delete an element, it shows the delete button and opens details view. What can I do abou
我使用ng-click来显示列表中的项目的详细信息，并且当用户向左滑动时，我会将jQuery移动滑动事件附加到列表项目以显示删除按钮。 问题是，当我在元素上滑动时，它不仅发出滑动事件，而且还单击事件。 所以，当我想要滑动删除一个元素时，它会显示删除按钮并打开详细信息视图。 我能做些什么呢？ 有像ng-swipe这样的东西会很酷。 最新的不稳定的angularjs（1.1.4+）版本包括ngSwipeLeft和ngSwipeRight指令。 您必须小心引
Please check http://jsfiddle.net/UmJtB/18/ below code <script type="text/javascript"> $(document).ready( function() { $(".uploadphoto").click(function() { if(document.getElementById('files').files.length == 0){ alert('Select an Image first'); return false; }else { // When upload button is pressed, load the Popupbox First loadPopupBox(); }
请检查http://jsfiddle.net/UmJtB/18/以下代码 <script type="text/javascript"> $(document).ready( function() { $(".uploadphoto").click(function() { if(document.getElementById('files').files.length == 0){ alert('Select an Image first'); return false; }else { // When upload button is pressed, load the Popupbox First loadPopupBox(); } $
What is the meaning of polyfills in HTML5? I saw this word in many sites about HTML5, eg HTML5-Cross-Browser-Polyfills. So here we're collecting all the shims, fallbacks, and polyfills in order to implant HTML5 functionality in browsers that don't natively support them. I actually don't understood what is the meaning of polyfills. Is it a new HTML5 technique or a JavaScript lib
HTML5中polyfills的含义是什么？ 我在很多关于HTML5的网站中看到了这个词，例如HTML5-Cross-Browser-Polyfills。 因此，我们在这里收集所有垫片，回退以及polyfill，以便将HTML5功能植入本来不支持它们的浏览器中。 我其实不明白polyfills是什么意思。 它是一种新的HTML5技术或JavaScript库吗？ 在HTML5之前我从未听过这个词。 垫片，回退和填充有什么区别？ polyfill是一种浏览器回退功能，使用JavaScript制作，允
I wanted to use the MEAN JavaScript Stack, but I noticed that there are two different stacks with either their own website and installation methods: mean.js and mean.io. So I came up asking myself this question: "Which one do I use?". So in order to answer this question I ask the community if you could explain what are the differences between these two? And if possible pros and cons
我想使用MEAN JavaScript Stack，但我注意到有两种不同的堆栈可以使用它们自己的网站和安装方法：mean.js和mean.io. 于是我问自己这个问题：“我使用哪一个？”。 所以为了回答这个问题，我问社区你是否可以解释这两者之间的区别？ 如果可能的话，优点和缺点？ 因为他们看起来和我很相似。 他们本质上是一样的......他们都使用swig进行模板化，他们都使用业力和摩卡进行测试，通行证集成，nodemon等。 为什么这么相似？
I have a basic controller that displays my products, App.controller('ProductCtrl',function($scope,$productFactory){ $productFactory.get().success(function(data){ $scope.products = data; }); }); In my view I'm displaying this products in a list <ul> <li ng-repeat="product as products"> {{product.name}} </li> </ul What I'm trying
我有一个基本的控制器来显示我的产品， App.controller('ProductCtrl',function($scope,$productFactory){ $productFactory.get().success(function(data){ $scope.products = data; }); }); 在我看来，我在列表中显示这些产品 <ul> <li ng-repeat="product as products"> {{product.name}} </li> </ul 我试图做的是当有人点击产品名称时，我有另一个名为购物车