jQuery same click event for multiple elements

$('.class1, .class2').on('click', some_function);

Or:

$('.class1').add('.class2').on('click', some_function);

This also works with existing objects:

const $class1 = $('.class1');
const $class2 = $('.class2');
$class1.add($class2).on('click', some_function);

I normally use on instead of click. It allow me to add more events listeners to a specific function.

$(document).on("click touchend", ".class1, .class2, .class3", function () {
     //do stuff
});