2-1.js

/* Attaching event listners with jQuery method 1: */
$('#someElement').click(function (event) {
    // Do something with the event
});

/* Attaching event listners with jQuery method 2: */
$(document).on('click', '#someElement', function (event) {
    // Do something with the event
});

/* Attaching event listeners with Javascript */
document.getElementById('someElement').addEventListener('click', function (event) {
    // Do something with the event
});

/* You can also do click events in JS this way */
document.getElementById('someElement').onclick = function (event) {
    // Do something with the event
}