JavaScript to delete all of your Reddit comments

nowhal.js

// Go to https://www.reddit.com/user/<username>/ and paste into your console.
// Reddit throttles these actions, hence the 1s timer.

// Make sure to goto your profile > user settings > opt out of redesign. 
// If you do not run this against the old theme it will not work

let interval = setInterval(() => {
    let deleteButtons = $('a.togglebutton[data-event-action="delete"]');
    if (deleteButtons.length === 0) {
        clearInterval(interval);
        if ($('.next-button > a')[0]) {
            $('.next-button > a')[0].click();
            alert('Restart script.');
        }
    } else {
        deleteButtons[0].click();
        setTimeout(() => {
            $('span.option.error.active > a.yes').click();
        }, 300);
    }
}, 1000);

Updated the snippet to get it working on the old theme