javascript - catch javascript 的意外 token 错误

Question

我正在努力寻找这段代码中的错误。我已经检查了很多次了，谁能指出问题出在哪里？

$(function() {
  try {
    function endswith(str, ends) {
      if (ends === '') return true;
      if (str == null || ends == null) return false;
      str = String(str);
      ends = String(ends);
      return str.length >= ends.length && str.slice(str.length - ends.length) === ends;
    }
    var referrer = new URL(document.referrer).domain;
    if (endswith(referrer, "xyz.com")) {
      $(".logo .logo-external").remove();
    } else {
      $(".logo .logo-internal").remove();
    }
  } catch () {}
});

Answer 1

catch (e) {} 你错过了变量 e

$(function() {
  try {
    function endswith(str, ends) {
      if (ends === '') return true;
      if (str == null || ends == null) return false;
      str = String(str);
      ends = String(ends);
      return str.length >= ends.length && str.slice(str.length - ends.length) === ends;
    }
    var referrer = new URL(document.referrer).domain;
    if (endswith(referrer, "xyz.com")) {
      $(".logo .logo-external").remove();
    } else {
      $(".logo .logo-internal").remove();
    }
  } catch (e) {}
});