跟踪Java中方法调用的最佳方法

Question

I am a beginner in JavaScript, and I am now given a project that used Javascript heavily. In most of the JS files, it will contain statements of the following format:

 Jebber.Ajax.enqueueAction(smsType, true, options, callback);

I am familiar with Java, so I assume there might be some import or sth. at the top of the file, but there isn't any, and there is no explicit definition of "Jebber" variable. So I am curious about where does this Jebber variable come from. I am using Eclipse to edit the JavaScript files, it seems F3 doesn't work to retrieve the definition of a method.

So I am a little bit stuck here:could experts teach me a good way to dive through a large collection of JavaScript files to find the definition of variables/functions etc.? Thanks in advance.

Answer 1

You can do that using JS Object setters :

Object.defineProperty(window, 'Jebber', {
    set: function() {
        debugger;
    },
    get: function() {} 
});

When something is assigned to a global Jebber variable you'll get a break in a js debugger (use the one in chrome dev tools for example)

Live demo: http://jsfiddle.net/XtZkJ/

Open debugger and see on the stack trace - it will point to the exact line the variable modified.

Answer 2

“导入”将是HTML文件而不是脚本文件中的<script>标记。