Why is trackId undefined on the first play press? After a track is skipped, the play feature works as expected. I'm building a player with the SoundCloud Javascript SDK, and I've run into a snag. When play is pressed, the variable trackId is undefined. However, I can skip tracks to get successful plays of each song in the example account. *Note: I had this working with the HTML5 w
为什么trackId在第一次播放时未定义？ 跳过曲目后，播放功能按预期工作。 我使用SoundCloud Javascript SDK构建了一个播放器，并且遇到了一些问题。 当按下play时，变量trackId是未定义的。 但是，我可以跳过曲目以获得示例帐户中每首歌曲的成功播放。 *注意：我曾与HTML5小部件和api一起工作，但包含一个iframe，它不适用于iPhone音频播放，所以我需要使用JavaScript SDK解决这个问题。 提前致谢！ 开发区域：http:
I'm currently using Node to scrape a blog that stores selected data in a JSON file. When scraping a blog post that contains an embedded track from Soundcloud I seem to only be able to collect the iframe src and not that actual track link (either soundcloud link or stream link). When I scrape the iframe src url I seem to only be able to get a link that's in the following format: https:/
我目前正在使用Node来抓取将选定数据存储在JSON文件中的博客。 当从Soundcloud抓取包含嵌入式轨道的博客文章时，我似乎只能收集iframe src而不是实际的轨道链接（soundcloud链接或流链接）。 当我抓取iframe src网址时，我似乎只能获得以下格式的链接：https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks / 120261008＆颜色= 000000＆auto_play =假show_artwork =假 如果我无法抓取轨道URL有没有一
I have an embedded player that works by trackId but: I but I am trying to get non-technical users to embed the tracks or playlists into pages. I sometimes need to regenerate the playlists For both these reasons it is inconvenient that the player needs trackId. Is there a way I can play off the permalink? Thanks, Martin. PS. My current iframe code looks like this: src="https://w
我有一个由trackId工作的嵌入式播放器，但是： 我但我试图让非技术用户将曲目或播放列表嵌入到页面中。 我有时需要重新生成播放列表 由于这两个原因，玩家需要trackId是不方便的。 有没有一种方法可以播放永久链接？ 谢谢，马丁。 PS。 我目前的iframe代码如下所示： SRC = “https://w.soundcloud.com/player/?url=http%3A%2F%2Fapi.soundcloud.com%2Fplaylists%2F$paramPlaylistID” 此iFrame代码（来自评论＃1
So essentially, I have tried to move to a function that does the work for the source parameter in the autocomplete method, and now the script is broken. No options show up upon typing even though values are being returned by the $.get(...) request. The HTML: <tr class="itemTableRow"> <td> <input type="text" class="item" name="items
所以基本上，我试图移动到一个函数，它为自动完成方法中的source参数执行工作，现在脚本已经损坏。 即使通过$.get(...)请求返回值，也不会显示任何选项。 HTML： <tr class="itemTableRow"> <td> <input type="text" class="item" name="items[]" /> </td> <td> <input type="range"
I have a webpage on my site that displays a table, reloads the XML source data every 10 seconds (with an XmlHttpRequest), and then updates the table to show the user any additions or removals of the data. To do this, the JavaScript function first clears out all elements from the table and then adds a new row for each unit of data. Recently, I battled thru a number of memory leaks in Internet E
我的网站上有一个显示表格的网页，每隔10秒（使用XmlHttpRequest）重新加载XML源数据，然后更新表格以向用户显示数据的任何添加或删除。 为此，JavaScript函数首先清除表中的所有元素，然后为每个数据单元添加一个新行。 最近，我遇到了由这个DOM破坏和创建代码导致的Internet Explorer中的大量内存泄漏（其中大部分代码与JavaScript对象和DOM对象之间的循环引用有关，而且我们正在使用的JavaScript库安静地保留引用每个用new
I am wondering about this topic for quite a while. The methods in question are the following: getElementsByTagName getElementsByClassName getElementsByName querySelectorAll As far as I know, those DOM methods are the only methods which are able to return frozen or live NodeLists . For some of those methods, order is defined by W3C spec. For instance, http://www.w3.org writes the foll
我想了解这个话题已经有一段时间了。 有问题的方法如下： getElementsByTagName getElementsByClassName getElementsByName querySelectorAll 据我所知，这些DOM方法是唯一能够返回冻结或活动NodeLists 。 对于其中一些方法，订单由W3C规范定义。 例如，http://www.w3.org为querySelectorAll返回的NodeLists写入以下内容 Document，DocumentFragment和Element接口上的querySelectorAll（）方法必须以文档顺序返回
I am getting a 'POST 400 bad request' error when trying to update a table on parse.com using JS SDK. var Gallery = Parse.Object.extend("Gallery"); var gallery = new Gallery(); var activeArtworks = 0; gallery.save(null, { success: function(gallery) { gallery.set("activeArtworks", activeArtworks); gallery.save(); } }); Please help! I can't see how this is
尝试使用JS SDK更新parse.com上的表时，出现'POST 400错误请求'错误。 var Gallery = Parse.Object.extend("Gallery"); var gallery = new Gallery(); var activeArtworks = 0; gallery.save(null, { success: function(gallery) { gallery.set("activeArtworks", activeArtworks); gallery.save(); } }); 请帮忙！ 我看不出这与这里解析提供的示例代码有什么不同 您参考的示例代码在
I'm really stuck and I've tried all the other examples but nothing works. I'm fairly new to ASP.NET but learning fast! I want to use the jQuery datepicker and I am inserting this script <script> $(document).ready(function () { $(function () { $("#" + '<%=txtDOB.ClientID%>').datepicker(); }); }); </scri
我真的陷入困境，我尝试了所有其他的例子，但没有任何工作。 我对ASP.NET很新，但学得很快！ 我想使用jQuery datepicker，我插入这个脚本 <script> $(document).ready(function () { $(function () { $("#" + '<%=txtDOB.ClientID%>').datepicker(); }); }); </script> 和我在aspx页面上的控制是 <asp:TextBox ID="txtDOB" CssClas
Is there a way to allow "unlimited" vars for a function in JavaScript? Example: load(var1, var2, var3, var4, var5, etc...) load(var1) 当然，只需使用arguments对象。 function foo() { for (var i = 0; i < arguments.length; i++) { console.log(arguments[i]); } } Another option is to pass in your arguments in a context object. function load(context) { // do whatever with co
有没有一种方法可以在JavaScript中为函数提供“无限”变量？ 例： load(var1, var2, var3, var4, var5, etc...) load(var1) 当然，只需使用arguments对象。 function foo() { for (var i = 0; i < arguments.length; i++) { console.log(arguments[i]); } } 另一种选择是在上下文对象中传入参数。 function load(context) { // do whatever with context.name, context.address, etc } 并像这样使用它 load({
I am working on a large web site, and we're moving a lot of functionality to the client side (Require.js, Backbone and Handlebars stack). There are even discussions about possibly moving all rendering to the client side. But reading some articles, especially ones about Twitter moving away from client side rendering, which mention that server side is faster / more reliable, I begin to have
我正在一个大型网站上工作，并且我们将很多功能转移到客户端（Require.js，Backbone和Handlebars堆栈）。 甚至有关于将所有渲染移动到客户端的讨论。 但是阅读一些文章，尤其是关于Twitter摆脱客户端渲染的文章，其中提到服务器端更快/更可靠，我开始有问题。 我不明白如何从JSON渲染JS中相当简单的HTML小部件，而模板是具有4-8 GB RAM的双核CPU上的当代浏览器比在服务器端应用程序中制作几十个包含任何内容的速度慢。 有没