function remove_children(element) {
    Array.from(element.children).forEach(child => {
	element.removeChild(child);
    });
}

function trigger_change_event(element) {
    evt = new Event("change");
    element.dispatchEvent(evt);
}


var remove_class = (element, classvalue) => {
    new_classes = (element.attr("class") || "").split(" ").map((val) => {
        return val.trim();
    }).filter((val) => {
        return ((val !== classvalue) &&
                (val !== ""))
    }).join(" ");

    if(new_classes === "") {
        element.removeAttr("class");
    } else {
        element.attr("class", new_classes);
    }
};


var add_class = (element, classvalue) => {
    remove_class(element, classvalue);
    element.attr("class", (element.attr("class") || "") + " " + classvalue);
};

$(".not-implemented").click((event) => {
    event.preventDefault();
    alert("This feature is not implemented yet. Please bear with us.");
});