Pull csv from hsbc statements

hsbc.js

(function(window) {

// based on https://github.com/dahousecat/hsbc-statement-to-csv/blob/master/create-csv.js

function assert(condition, message) {
  if (!condition) throw message || "Assertion failed";
}

assert($, "need jquery")
assert($('table[summary*="This table contains"] thead').length == 1, "expecting one table head")
var $tbody = $('table[summary*="This table contains"] tbody')
assert($tbody.length == 1, "expecting one table body")

function csvClean(x) {
  return x.replace(/[\r,]/g, '').replace(/\n/g, ' ').trim()
}

var csv = ""

$('tr', $tbody).each((i, x) => {
  var cells = $('td', $(x))
  var date = csvClean(cells[0].innerText)
  var type = csvClean(cells[1].innerText)
  var desc = csvClean(cells[2].innerText)
  var pout = csvClean(cells[3].innerText)
  var pin  = csvClean(cells[4].innerText)
  var aftr = csvClean(cells[5].innerText)
  console.log(date, ",", type, ",", desc, ",", pout, ",", pin, ",", aftr)
  csv += `${date}, ${type}, ${desc}, ${pout}, ${pin}, ${aftr}\n`
})

var statement_date = new Date().toISOString() // todo: pull from webpage?
var data = 'data:application/csv;charset=utf-8,' + encodeURIComponent(csv);
$('body').append('<a href="'+data+'" download="statement-'+(statement_date.replace(' ', '-'))+'.csv" id="download-statement" style="display: none;">Download</a>');
$('#download-statement')[0].click();

})(window)