JAVASCRIPT

click outside javascript

// Vanilla js
var ignoreMe = document.getElementById("ignoreMe");
window.addEventListener('mouseup', function(event){
	if (event.target != ignoreMe && event.target.parentNode != ignoreMe){
    // Place your output
    }
});

detect a click outside an element javascript

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