Rails-like number_to_currency currency formatting

bjhess (Barry Hess) — Fri, 12 Oct 2007 20:15:57 GMT

This is pretty much a port of the Ruby on Rails number_to_currency method, right down to the hashed options.



number_to_currency: function (number, options) {

  try {

    var options   = options || {};

    var precision = options["precision"] || 2;

    var unit      = options["unit"] || "$";

    var separator = precision > 0 ? options["separator"] || "." : "";

    var delimiter = options["delimiter"] || ",";

  

    var parts = parseFloat(number).toFixed(precision).split('.');

    return unit + reports.number_with_delimiter(parts[0], delimiter) + separator + parts[1].toString();

  } catch(e) {

    return number

  }

},



number_with_delimiter: function (number, delimiter, separator) {

  try {

    var delimiter = delimiter || ",";

    var separator = separator || ".";

    

    var parts = number.toString().split('.');

    parts[0] = parts[0].replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1" + delimiter);

    return parts.join(separator);

  } catch(e) {

    return number

  }

}

DZone Snippets: prototype code

Rails-like number_to_currency currency formatting