Javascript Node.js express 的 Error 对象暴露了哪些属性？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/10624873/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
What properties does Node.js express's Error object expose?
提问by shahalpk
I would like to know what are the functions the Error object of nodejs express exposes for use in Error Handling?
A console.logof an error call new Error('NotFound')is showing only [Error: NotFound], is this because .toString()method is overriden? How do find the properties and functions exposed by these objects?
我想知道 nodejs express 的 Error 对象公开用于错误处理的功能是什么？错误调用的
A只显示，这是因为方法被覆盖了吗？如何找到这些对象公开的属性和功能？console.lognew Error('NotFound')[Error: NotFound].toString()
回答by jmar777
The Errorobject is actually a native object provided by V8, rather than by node.jsor express.
该Error对象实际上是由 提供的本机对象V8，而不是由node.js或 提供的express。
The property that will most likely be of the most use to you is stack. E.g.,
最有可能对您最有用的属性是stack。例如，
console.log(new Error('NotFound').stack);
There are other properties available as well, such as nameand message. You can read up on them here. Just be aware that those docs are for Mozilla's JavaScript engine, so don't count on anything flagged as Non-standardto work in node.js.
还有其他可用的属性，例如nameand message。你可以在这里阅读它们。请注意，这些文档适用于 Mozilla 的 JavaScript 引擎，因此不要指望任何标记为Non-standard在node.js.
