Delete stale branches from the GitHub repo's stale branches page (github.com/user/repo/branches/stale). Originally from https://stackoverflow.com/a/69089905

github-delete-stale-branches.js

async function deleteStaleBranches(delay=75) {     
    var stale_branches = document.getElementsByClassName('prc-Button-ButtonBase-c50BI prc-Button-IconButton-szpyj');
        for (var i = 0; i < stale_branches.length; i++)     {  
          stale_branches.item(i).click();
          await new Promise(r => setTimeout(r, delay));     
        }     
        const next = document.querySelector('[aria-label="Next Page"]');
        if(next) {         
            next.click();
            setTimeout(() => deleteStaleBranches(delay), delay);
        } 
}  (() => { deleteStaleBranches(75); })();