how to target a button that was created outside of a function javascript code example

Example 1: javascript detect click outside element

var ignoreClickOnMeElement = document.getElementById('someElementID');

document.addEventListener('click', function(event) {
    var isClickInsideElement = ignoreClickOnMeElement.contains(event.target);
    if (!isClickInsideElement) {
        //Do something click is outside specified element
    }
});

Example 2: detect a click outside an element javascript

$(document).click((event) => {
  if (!$(event.target).closest('#element').length) {
    // the click occured outside '#element'
  }        
});