Check all Checkboxes in Page via Developer Tools

Question

I have a loop that creates 20 check-boxes in the same page (it creates different forms). I want via chrome developer tools to

Answer 1

Try setAttribute.

(function() {
  var aa = document.getElementsByTagName("input");
  for (var i =0; i < aa.length; i++){
    aa.elements[i].setAttribute('checked', 'checked');
  }
})();

Edit: added parens to execute the function immediately.