JavaScript 中的 try-catch：如何获取原始错误的堆栈跟踪或行号
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/10988169/
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
try-catch in JavaScript : how to get stack trace or line number of the original error
提问by Greg Balajewicz
When using TRY-CATCH in JavaScript, how to get the line number of the line that caused the error?
在 JavaScript 中使用 TRY-CATCH 时，如何获取导致错误的行的行号？
On many browsers, the below code will work great and I will get the stack trace that points to the actual line that throw the exception.
在许多浏览器上，下面的代码会很好用，我将获得指向引发异常的实际行的堆栈跟踪。
However, some browsers do not have "e.stack". IPhone's safari is one example.
但是，有些浏览器没有“e.stack”。iPhone 的 safari 就是一个例子。
Is there someway to get the line number that will work for all browsers?
有没有办法获得适用于所有浏览器的行号？
try
{
// lots of code here
var i = v.WillGenerateError; // how to get this line number in catch??
// lots of code here
}
catch (e)
{
alert (e.stack) // this will work on chrome, FF. will no not work on safari
alert (e.line) // this will work on safari but not on IPhone
}
Many thanks!
非常感谢！
UPDATE: I found that e.line works on safari but still not available on IPhone, latest iOS version
更新：我发现 e.line 可以在 safari 上运行，但在最新的 iOS 版本 iPhone 上仍然不可用
回答by Victor
Try to use e.lineNumber.
For example:
尝试使用e.lineNumber. 例如：
try {
var i = v.WillGenerateError;
} catch (e) {
alert(e.lineNumber);
}
回答by Seanonymous
try {
0();
} catch (e) {
alert(e.line);
}
Using 'e.line' in a try…catch block will give the line number of the error in Mobile Safari.
在 try...catch 块中使用 'e.line' 将给出 Mobile Safari 中错误的行号。
