Stars all repositories on a page where the "Star" button is visible with 500ms grace period

StarAllRepos.js

var fn = (i, total) => {
    string = "";
    approx = Math.floor(i / total * 20) 
    for (let n = 0; n < 20; n++) {
        if (n <= approx) 
            string += "█"
        else
            string += "–"
    }
    return string;
}
prcg = new Intl.NumberFormat('en', {style: "percent", maximumFractionDigits: 2})
a = Array.from(document.querySelectorAll('button[aria-label="Star this repository"]'))
a.forEach((e, i) => {
    setTimeout(() => { e.click(); console.clear(); console.log(`[${fn(i, 30)}] ${prcg.format(i / 30)}`); }, i * 500) 
})