var target = null;
var res = $('#res'), counter = 0;

$('#container').empty().append('<div id="target">');

function init_jQuery(count) {
	if (target) return;
	target = $('#target');
	
	for (var i=0; i<count; i++) {
		target.on('click', () => {res.html(counter++)});
	}
}

function init_plainJs(count) {
	if (target) return;
	target = document.getElementById('target');
	
	for (var i=0; i<count; i++) {
		target.addEventListener('click', () => {res.html(counter++)});
	}
}