Automatically Open External Links In a new tab with Javascript

open-external-links-in-new-tab.js

window.onload = function(){

  var anchors = document.getElementsByTagName('a');
  for (var i=0; i<anchors.length; i++){

    console.log(window.location.hostname);

  if(!((anchors[i].href.indexOf(window.location.hostname) >= 0) || anchors[i].href=="#" || anchors[i].href=="javascript:void(0)" || anchors[i].href[0]=="/" || anchors[i].href[0]==".")){

   anchors[i].setAttribute('target', '_blank');

  }
    
  }

}