node.js - 将参数从服务器端传递到客户端 Node.js Express

Question

尝试使用 Express 在 Node.js 中将参数从服务器端传递到客户端。

我在服务器端使用以下命令:

for (var i = 0; i < events.length; i++) 
{
    existingEvents.push(events[i]);
}
res.render('index', { locals: {existingEvents: existingEvents}});

以及客户端(jade)脚本部分内的以下代码

var events = "";
      for (var i = 0;i < existingEvents.length;i++)
        {
             if (i == 0)
             {
                 events = "events: [{title: '" + existingEvents[i].summary +"', start: '" + existingEvents[i].start.dateTime + "',constraint: 'businessHours'}";
             }
             else
             {
                 events += ", { title: 'aaaaaaaaa', start: '2016-03-03T13:00:00',constraint: 'businessHours'}";
             }
        }events += "]";

当我在 Chrome 上调试时，我收到以下有关现有事件的错误:

“ Uncaught ReferenceError :现有事件未定义”。

我看了这篇文章:Accessing Express.js local variables in client side JavaScript并尝试了各种方法来实现它。 (例如尝试过#{existingEvents})。

但到目前为止没有任何效果。你们将如何实现这一目标？非常感谢您的帮助:)

Answer 1

试试这个:

for (var i = 0; i < events.length; i++) 
{
    existingEvents.push(events[i]);
}
res.render('index', { existingEvents: existingEvents });

Jade :

script(type="text/javascript").

    var existingEvents = !{JSON.stringify(existingEvents)};

    var events = "";
    for (var i = 0; i < existingEvents.length; i++)
    {
         if (i == 0)
         {
             events = "events: [{title: '" + existingEvents[i].summary +"', start: '" + existingEvents[i].start.dateTime + "',constraint: 'businessHours'}";
         }
         else
         {
             events += ", { title: 'aaaaaaaaa', start: '2016-03-03T13:00:00',constraint: 'businessHours'}";
         }
    } 
    events += "]";