git.r.bdr.sh - rbdr/dotfiles/blob

   1 'use strict';
   2
   3 var toString = Object.prototype.toString
   4
   5   , id = toString.call(new Error());
   6
   7 module.exports = function (x) {
   8         return (x && ((x instanceof Error) || (toString.call(x)) === id)) || false;
   9 };