javascript - 如何获取 JSfiddle 中错误的行号

Question

使用下面的 JavaScript，我可以使用 JSfiddle 编辑器在 Safari 中记录行号错误，但不能使用 Chrome 或 Firefox。我意识到我可以使用 Firebug 插件在 Firefox 中获取行号错误，但是我想在 Chrome 中使用 JSfiddle 和 Firebug Lite 作为外部资源来执行相同的操作。

//I pasted all of this into the JAVASCRIPT portion of jsfiddle editor
//I then pasted the FireBug Lite URL in the External Resources (left menu in jsfiddle) :
//https://getfirebug.com/firebug-lite-debug.js
//then hit enter
try {
  console.log('hello world');
  //console.log(x); //x was never defined
  console.log(x); //x was never defined
} catch (error) {
  console.log(error);
    //is there a way to include line 8 with the RererenceError?
  //I tried Safari and get this output: ReferenceError: Can't find variable: x {line=55, ...}
  var errorLineNumber = Number(error.line) - 48;
  console.log('Line number of the error is: ' + errorLineNumber) //works in safari to log: Line number of the error is: 8
//In Chrome and Firefox, it logs: Line number of the error is: NaN
} //then clicked Run in JSfiddle

感谢任何帮助。

Answer 1

返回行号。您需要展开... at

ReferenceError: x is not defined(…)

删除评论后

try {
  console.log("hello world");
  console.log(x); //x was never defined
} catch (error) {
  console.log(error);
} 

错误出现在第 3 行。展开 ... 显示

at <anonymous>:3:15

在 chrome，在 控制台 上使用 chromium