SO

by newblt123

HTML

<div>
    Hello
</div>

<button> Add Content </button>

JavaScript

$(function () {
    $("button").on('click', function () {
        $("div").append(getSelect());
    });
    
    $("div").on('change', '.mySelects', function () {
        alert('select changed!');
    });
});

function getSelect() {
    return $("<select></select>")
    .addClass("mySelects")
    .append($("<option></option>")
            .html("abc")
            .val("1"))
    .append($("<option></option>")
            .html("def")
            .val("2"));
}