https://www.hochheim.de/fileadmin/templates/js/libs/flatpickr/utils/dom.js

1export function toggleClass(elem, className, bool) {
2    if (bool === true)
3        return elem.classList.add(className);
4    elem.classList.remove(className);
5}
6export function createElement(tag, className, content) {
7    var e = window.document.createElement(tag);
8    className = className || "";
9    content = content || "";
10    e.className = className;
11    if (content !== undefined)
12        e.textContent = content;
13    return e;
14}
15export function clearNode(node) {
16    while (node.firstChild)
17        node.removeChild(node.firstChild);
18}
19export function findParent(node, condition) {
20    if (condition(node))
21        return node;
22    else if (node.parentNode)
23        return findParent(node.parentNode, condition);
24    return undefined;
25}
26export function createNumberInput(inputClassName, opts) {
27    var wrapper = createElement("div", "numInputWrapper"), numInput = createElement("input", "numInput " + inputClassName), arrowUp = createElement("span", "arrowUp"), arrowDown = createElement("span", "arrowDown");
28    if (navigator.userAgent.indexOf("MSIE 9.0") === -1) {
29        numInput.type = "number";
30    }
31    else {
32        numInput.type = "text";
33        numInput.pattern = "\\d*";
34    }
35    if (opts !== undefined)
36        for (var key in opts)
37            numInput.setAttribute(key, opts[key]);
38    wrapper.appendChild(numInput);
39    wrapper.appendChild(arrowUp);
40    wrapper.appendChild(arrowDown);
41    return wrapper;
42}
43export function getEventTarget(event) {
44    try {
45        if (typeof event.composedPath === "function") {
46            var path = event.composedPath();
47            return path[0];
48        }
49        return event.target;
50    }
51    catch (error) {
52        return event.target;
53    }
54}