https://www.der-stellenmarkt.de/design/js/utils/async.js

1// Wartet auf ein globales Window-Objekt (z. B. geladene Bibliothek) bis zum Timeout.
2export function waitForGlobal(globalName, timeoutMs = 5000, intervalMs = 100) {
3    const deadline = Date.now() + timeoutMs;
4
5    return new Promise((resolve) => {
6        if (typeof window[globalName] !== 'undefined') {
7            resolve(window[globalName]);
8            return;
9        }
10
11        const interval = window.setInterval(() => {
12            if (typeof window[globalName] !== 'undefined') {
13                window.clearInterval(interval);
14                resolve(window[globalName]);
15                return;
16            }
17
18            if (Date.now() >= deadline) {
19                window.clearInterval(interval);
20                resolve(undefined);
21            }
22        }, intervalMs);
23    });
24}