delete multiple cards in list in trello

deleteCards.js

/**
 * CAUTION!
 * Copy board before run.
 * Lists start at 0.
 */
function deleteCardsInList(listNumber) {
    var list = document.getElementsByClassName("list-cards")[listNumber];
    var a = list.getElementsByTagName('a');
    var aLength = a.length;

    for(var i = 0; i < aLength; i++) {
        simulateClick(a[0]);

        var shareAndMore = document.getElementsByClassName('quiet-button js-more-menu')[0]
        simulateClick(shareAndMore);
      
        var deleteButton = document.getElementsByClassName('js-delete')[0];
        simulateClick(deleteButton);

        var finalDeleteButton = document.getElementsByClassName('js-confirm full negate')[0];
        simulateClick(finalDeleteButton);
    }

    console.log('finish');

    function simulateClick(cb) {
        var event = new MouseEvent('click', {
            view: window,
            bubbles: true,
            cancelable: true
        }); 
        cb.dispatchEvent(event);
    }
}