TamperMonkey Utilities

tm-utils.js

const delay = ms => new Promise(r => setTimeout(r, ms));

const waitFor = async fn => {
    let el = null;
    while (!el) {
        await delay(50);
        el = await fn();
    }
    return el;
}

const byText = (text, selector) =>
    [...document.querySelectorAll(selector)].find(el => el.innerText.includes(text));

const waitForElem = async sel =>
    await waitFor(() => document.querySelector(sel));

const waitForElemText = async (text, sel) =>
    await waitFor(() => byText(text, sel));