I ran into an issue in my Rails 4 app while trying to organize JS files "the rails way". They were previously scattered across different views. I organized them into separate files and compile them with the assets pipeline. However, I just learned that jQuery's "ready" event doesn't fire on subsequent clicks when turbo-linking is turned on. The first time you load a page it works. But when you click a link, anything inside the ready( function($) { won't get executed (because the page doesn't actually load again). Good explanation: here.

所以我的问题是:什么是确保jQuery事件在涡轮链接打开时正常工作的正确方法?您是否将脚本包装在特定于rails的侦听器中?或者也许rails有某种魔力,使它变得不必要?文档对这应该如何工作有点模糊,特别是关于通过manifest(s)加载多个文件,如application.js。


当前回答

首先,安装jquery-turbolinks gem。然后,不要忘记将包含的Javascript文件从application.html.erb的body末尾移动到它的<head>。

如本文所述,如果出于速度优化的原因将应用程序javascript链接放在页脚中,则需要将其移动到标记中,以便它在标记中的内容之前加载。这个解决方案对我很有效。

其他回答

我刚知道另一个解决这个问题的方法。如果你加载jquery-turbolinks宝石,它会将Rails Turbolinks事件绑定到文档上。ready事件,这样你就可以用通常的方式编写jQuery。你只需要添加jquery。在js的manifest文件(默认:application.js)中,Turbolinks就在jquery之后。

在Rails 4文档中找到了这个,类似于DemoZluk的解决方案,但略短:

$(document).on 'page:change', ->
  # Actions to do

OR

$(document).on('page:change', function () {
  // Actions to do
});

如果你有调用$(document).ready()的外部脚本,或者如果你不想重写所有现有的JavaScript,那么这个gem允许你继续使用$(document).ready()和TurboLinks: https://github.com/kossnocorp/jquery.turbolinks

与其使用变量保存“ready”函数并将其绑定到事件,不如在page:load触发时触发ready事件。

$(document).on('page:load', function() {
  $(document).trigger('ready');
});
$(document).on 'ready turbolinks:load', ->
  console.log '(document).turbolinks:load'

我想我把这个留给那些升级到Turbolinks 5的人:修复代码的最简单的方法是从:

var ready;
ready = function() {
  // Your JS here
}
$(document).ready(ready);
$(document).on('page:load', ready)

to:

var ready;
ready = function() {
  // Your JS here
}
$(document).on('turbolinks:load', ready);

参考:https://github.com/turbolinks/turbolinks/issues/9 # issuecomment - 184717346