任务管理器显示内存泄漏，但堆快照不显示(Task manager shows memory leak, but Heap snapshot doesn't)

 在PhantomJS中无法确定这一点。 关于phantom.onError的文档说： 
 
 
 
 这是在PhantomJS中拥有全局错误处理程序的最接近的 
 
 
 这并没有捕捉到语法错误。 如果您尝试使用--debug=true选项运行它，您将看到许多调试消息，但最终错误仍然具有相同的信息量。 
 
 我尝试的另一件事是使用第二个PhantomJS脚本，它读取原始脚本并尝试eval它。 在这种情况下触发phantom.onError事件，但trace参数为空。 
 
 好处是PhantomJS / CasperJS脚本只是JavaScript，因此您可以将它们粘贴到http://jslint.com/或在它们上运行专用的jslinter以查看问题所在。 您必须在网站上标记一些选项，否则您将收到很多错误： 
 
 
 
 将phantom添加到全局变量框中， 
 
 
 启用node.js模式和 
 
 
 容忍“一切”（或那些你真正想要容忍的东西） 
 

It's not possible to determine this in PhantomJS itself. The documentation on phantom.onError says:
 
 
 
This is the closest it gets to having a global error handler in PhantomJS
 
 
And this doesn't catch the syntax error. If you try to run it with the --debug=true option, you will see a lot of debug messages, but the final error has still the same amount of information.
 
Another thing that I tried was to use a second PhantomJS script which reads the original script and tries to eval it. The phantom.onError event is triggered in this case, but the trace argument is empty.
 
The good thing is that PhantomJS/CasperJS scripts are just JavaScript, so you can paste them to http://jslint.com/ or run a dedicated jslinter on them to see where the problem lies. There are some options that you have to mark on the site or otherwise you will get a lot of errors:
 
 
 
add phantom to the global variables box,
 
 
enable node.js mode and
 
 
tolerate "everything" (or those things that you actually want to tolerate)