cvan

var queryParams = window.location.search.substr(1).split('&').reduce(function (qs, query) {
  var chunks = query.split('=');
  var key = chunks[0];
  var value = decodeURIComponent(chunks[1] || '');
  var valueLower = value.trim().toLowerCase();
  if (valueLower === 'true' || value === 'false') {
    value = Boolean(value);
  } else if (!isNaN(Number(value))) {
    value = Number(value);
  }

DiegoSalazar

// Takes a credit card string value and returns true on valid number
function valid_credit_card(value) {
  // Accept only digits, dashes or spaces
	if (/[^0-9-\s]+/.test(value)) return false;

	// The Luhn Algorithm. It's so pretty.
	let nCheck = 0, bEven = false;
	value = value.replace(/\D/g, "");

	for (var n = value.length - 1; n >= 0; n--) {