INNER CODE UNIT · JavaScript

markInterval

business-science/free_r_tips · 030_slide_decks_xaringan/libs/datatables-binding/datatables.js:11

var markInterval = function(d, digits, interval, mark, decMark, precision) {
  x = precision ? d.toPrecision(digits) : d.toFixed(digits);
  if (!/^-?[\d.]+$/.test(x)) return x;
  var xv = x.split('.');
  if (xv.length > 2) return x;  // should have at most one decimal point
  xv[0] = xv[0].replace(new RegExp('\\B(?=(\\d{' + interval + '})+(?!\\d))', 'g'), mark);
  return xv.join(decMark);
};

DTWidget.formatCurrency = function(data, currency, digits, interval, mark, decMark, before) {
  var d = parseFloat(data);
  if (isNaN(d)) return '';
  var res = markInterval(d, digits, interval, mark, decMark);
  res = before ? (/^-/.test(res) ? '-' + currency + res.replace(/^-/, '') : currency + res) :
    res + currency;
  return res;
};

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