Chrome Extension - Show Trello cards ids and cards by lists

chrome_extension_trello.js

(function () {
    showCardId();
    countCardsByList();
})();

function showCardId() {
    var cards_id = document.querySelectorAll('.card-short-id');

	for (var i=0; i < cards_id.length; i++) {
			id = cards_id[i].textContent;
		id = id.replace(/(\N\º|\s+\-)/, '');
		cards_id[i].textContent = id + " - ";

		removeClass(cards_id[i]);
	}
}

function countCardsByList() {
    var list = document.querySelectorAll('.list-wrapper');
    if (list.length > 0) {
	    for (var i = 0; i < list.length; i++) {
		    var header_title = list[i].querySelector('.list-header-name');
		    var list_cards = list[i].querySelectorAll('.list-card');
		    header_title.value = header_title.value + ' (' + list_cards.length + ')';
	    }
    }
}

function removeClass(el) {
	var className = 'hide';

    if (el.classList)
      el.classList.remove(className);
    else
      el.className = el.className.replace(new RegExp('(^|\\b)' + className.split(' ').join('|') + '(\\b|$)', 'gi'), ' ');
}