Pakirava-Datsuma

[
    ["li pre.log-line", "Error", 440],
    ["li pre.log-line", "Warning", 523]
].forEach(([selector, targetText, frequency]) => { 
    new MutationObserver(mutations => 
        mutations.forEach(({ addedNodes }) => 
            addedNodes.forEach(node => {
                if (node.nodeType === 1 && 
                    (node.matches?.(selector) || node.querySelector?.(selector)) && 
                    node.textContent.includes(targetText)) {

Pakirava-Datsuma

// concat youtube transcript
copy(Array.from(document.querySelectorAll("ytd-transcript-segment-renderer div yt-formatted-string")).reduce((acc, el) => acc + ` ` + el.textContent, ' '))
 
 // print unique commit authors
Array.from(new Set(
  Array.from(document.querySelectorAll("a.commit-author"))
    .map(a => '@'+a.textContent)
  ))
  .reduce((acc, el) => acc + el + ' ', '')