delete github branches on screen

delete-branches-on-screen.js

// Using this for branches displayed on the "stale branches" page, under https://github.com/yourOrg/yourProject/branches/stale
// Meant to be copy & paste into the browser console.

var i = 0;

function deleteOne() {
    // Idempotent selector, should select only Delete buttons that are not already clicked. When clicked, the UI
    // updates and replaces Details class with Details--on.
    var deleteButton = document.querySelectorAll('li.Details form button.text-red.js-branch-delete-target')[i];

    if (typeof deleteButton === 'undefined') {
        return false;
    }
    
    deleteButton.click();

    return true;
}

var id = setInterval(function() {
    try {
        if (!deleteOne()) {
            clearInterval(id);
        }

        i += 1;
    } catch (e) {
        clearInterval(id);
        throw e;
    }
}, 500);