提到的脚本有什么用? [英] What is the use of the script mentioned?

问题描述

在样本meanjs应用程序上工作.我无法理解以下代码段. 请在layout.server.view.html视图中解释此脚本的用法.

working on the sample meanjs application. I am not able to understand the below code snippet. Kindly explain the use of this script in layout.server.view.html view.

<!--Embedding The User Object-->
      <script type="text/javascript">
        var user = {{ user | json | safe }};
      </script>

推荐答案

基本上，每次对路由/*发出请求时，都会通过express/swig发送user(请参见

Basically user is being sent via express/swig everytime a request is made to the route /* (see here) so that user data can be used by AngularJS.

如果您检查文件core.server.controller.js(此处)，您将看到MEAN.JS在此代码块的响应中传递了一个用户对象:

If you check the file core.server.controller.js (here), you will see that MEAN.JS passes a user object in the response in this code block:

res.render('modules/core/server/views/index', {
    user: safeUserObject
});

然后在您提到的代码块中，将Express/Swig发送的用户对象分配给变量user，随后可以使用$window.user进行访问，类似于完成

Then in the code block you mentioned, you're assigning user object sent by express/swig to the variable user which can then be accessed later using $window.user similarly to what is done here.

json 和 safe 是两个swig过滤器.第一个返回JavaScript对象的字符串表示形式，第二个强制输入不自动转义.

json and safe are two swig filters. The first one returns a string representation of a JavaScript object and the second one forces the input to not be auto-escaped.

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