[javascript debugging] javascript debugging and error searchin tipps #javascript #debugging

debugging_tricks.js

var foo = document.getElementsByName('form-group-country_id')[0];
console.log('FOO ELEMENT: ', foo)
var observer = new MutationObserver(function(mutations) {
  console.log('STYLE CHANGED');
  debugger
});
observer.observe(foo, {
  attributes: true,
  attributeFilter: ['style'] });

foo.dataset.selectContentVal = 1;