post_2_createControl.js

const createControl = (aggrNames) => {
    const rootElement = document.createElement("select");
    rootElement.setAttribute("name", "aggregations");
    for (let name of aggrNames) {
        const optionElement = document.createElement("option");
        optionElement.textContent = name;
        rootElement.appendChild(
            optionElement
        );
    }
    return rootElement;
}