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vue-shop-cli's Issues

调试error方法

window.onerror = function (msg, url, line, col, error) {
//没有URL不上报!上报也不知道错误
if (msg != "Script error." && !url) {
return true;
}
//脚本的异常数降低了10倍
setTimeout(function () {
var data = {};
//不一定所有浏览器都支持col参数
col = col || (window.event && window.event.errorCharacter) || 0;

  data.url = url;
  data.line = line;
  data.col = col;
  if (!!error && !!error.stack) {
   //如果浏览器有堆栈信息,直接使用
    data.msg = error.stack.toString();
  } else if (!!arguments.callee) {
    //尝试通过callee拿堆栈信息
    var ext = [];
    var f = arguments.callee.caller, c = 3;
    //这里只拿三层堆栈信息
    while (f && (--c > 0)) {
      ext.push(f.toString());
      if (f === f.caller) {
        break;//如果有环
      }
      f = f.caller;
    }
    ext = ext.join(",");
    data.msg = error.stack.toString();
  }
  //把data上报到后台!
  console.log(data);

}, 0);
return true;
};

控制台直接显示错误js

window.onerror = function(msg, url, lineNo, columnNo, error) {
alert([
msg,
'file: ' + url,
'lineNo: ' + lineNo,
'columnNo: ' + columnNo,
'error: ' + error
].join('\n'));
};

在错误之前执行即可

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