krejdster

var sumArray = [];

var transactionsInterval = setInterval(function() {

    // Get all buy (bid) transactions

    $('.bid').closest('.historyItem-wrapper').find('strong#transaction-value').each(function(idx, record) {
        var price = $(record).text().replace(/pln/ig, '').replace(/ /ig, '').trim();
        price = parseFloat(price);
        sumArray.push(price);