nubank_csv.js

var parseDate = function(date) {
  var year = 2000 + parseInt($('.period .filter').text().match(/^.*(\d{2})$/)[1])

  date = date
    .replace('Fev', 'Feb')
    .replace('Abr', 'Apr')
    .replace('Mai', 'May')
    .replace('Ago', 'Aug')
    .replace('Set', 'Sep')
    .replace('Out', 'Oct')
    .replace('Dez', 'Dec');

  return new Date(Date.parse(date + " " + year))
}

var formatCSVRow = function(transaction) {
  var time = parseDate(transaction.time).toLocaleString('en').match(/\d+\/\d+\/\d+/)[0],
    type = transaction.type,
    category = transaction.category,
    description = transaction.description,
    amount = parseFloat(transaction.amount.replace('.', '').replace(',', '.').replace('R$', '')),
    tags = transaction.tags;

  return [time, type, category, description, amount, tags].join(',');
}

var events = []
$('#feedTable .event-card').each(function() {
  var $this = $(this)

  events.push({
    time: $this.find('.time').text(),
    type: $this.find('.type').text(),
    category: $this.find('.title').text(),
    description: $this.find('.description').text(),
    amount: $this.find('.amount').text(),
    tags: $this.find('.tags .tag').map(function(){ return $(this).text() }).toArray().join(';')
  })
})

var csvRows = events.map(function(e) { return formatCSVRow(e) }).reverse()
csvRows.unshift('Time,Type,Category,Description,Amount,Tags');

console.log(csvRows.join("\r\n"));