DZone Snippets: currency code

Fix NumberHelper to account for negative numbers

mcmire () — Mon, 02 Jun 2008 13:07:33 GMT



module ActionView

  module Helpers

    module NumberHelper

      def number_to_currency(number, options = {})

        options  = options.stringify_keys

        precision = options["precision"] || 2

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

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

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



        begin

          parts = number_with_precision(number, precision).split('.')

          delimitered_number = number_with_delimiter(parts[0], delimiter) + separator + parts[1].to_s

          if Float(number) >= 0.00

            unit + delimitered_number

          else

            #'(' + unit + delimitered_number.gsub(/^-/, '') + ')'

            '-' + unit + delimitered_number.gsub(/^-/, '')

          end

        rescue

          number

        end

      end

    end

  end

end

format brazilian money

caffo () — Thu, 11 Jan 2007 10:22:26 GMT





function FormataReais(fld, milSep, decSep, e) {

		var sep = 0;

		var key = '';

		var i = j = 0;

		var len = len2 = 0;

		var strCheck = '0123456789';

		var aux = aux2 = '';

		var whichCode = (window.Event) ? e.which : e.keyCode;

		if (whichCode == 13) return true;

	 	key = String.fromCharCode(whichCode);  // Valor para o código da Chave

		if (strCheck.indexOf(key) == -1) return false;  // Chave inválida

		len = fld.value.length;

		for(i = 0; i < len; i++)

		if ((fld.value.charAt(i) != '0') && (fld.value.charAt(i) != decSep)) 

 		break;

 		aux = '';

 		for(; i < len; i++)

		if (strCheck.indexOf(fld.value.charAt(i))!=-1) aux += fld.value.charAt(i);

		aux += key;

		len = aux.length;

		if (len == 0) fld.value = '';

		if (len == 1) fld.value = '0'+ decSep + '0' + aux;

		if (len == 2) fld.value = '0'+ decSep + aux;

		if (len > 2) {

			aux2 = '';

 			for (j = 0, i = len - 3; i >= 0; i--) {

				if (j == 3) {

					aux2 += milSep;

					j = 0;

				}

				aux2 += aux.charAt(i);

 				j++;

			}

			fld.value = '';

			len2 = aux2.length;

			for (i = len2 - 1; i >= 0; i--)

			fld.value += aux2.charAt(i);

			fld.value += decSep + aux.substr(len - 2, len);

		}

		return false;

}

Then use in the form field:
onkeypress="return(FormataReais(this,'.',',',event))"

Number to Currency with Cents

sporkyy (Todd Sayre) — Mon, 11 Sep 2006 05:58:03 GMT

A slight alteration to the default Rails currency formatting helper to show numbers in cents if the number is less than $1.00. For example $0.99 would instead become 99¢.



def number_to_currency_with_cents(number, options = {})

    options = options.stringify_keys

    precision = options.delete('precision') { 2 }

    unit = options.delete('unit') { '$' }

    fractional_unit = options.delete('fractional_unit') { '¢' }

    separator = options.delete('separator') { '.' }

    delimiter = options.delete('delimiter') { ',' }

    separator = '' unless precision > 0

    begin

        fraction = number.abs % 1.0

        body = number.floor

        if body != 0 || body == 0 && fraction == 0 then

            parts = number_with_precision(number, precision).split('.')

            unit + number_with_delimiter(parts[0], delimiter) + separator + parts[1].to_s

        else

            (fraction * 100).to_i.to_s + fractional_unit

        end

    rescue

        number

    end

end

I'm really tempted to go through and replace that whole thing with my own code, but it works, so I'm happy.

PHP dollar format

mvidberg () — Fri, 17 Feb 2006 09:38:48 GMT

// Function to return amount in the format $#.##



function dollar_format($amount) {

  $new_amount = "\$".sprintf("%.2f",$amount);

  return $new_amount;

}

Format Currency //Javascript Function

jonasraoni (Jonas Raoni Soares Silva) — Sat, 02 Jul 2005 02:51:05 GMT

Formats strings/numbers into "money format" without loops :)

Defaults:
float ploint cutoff = 2 decimal places
decimal separator = ','
thousands separator = '.'

[UPDATED CODE AND HELP CAN BE FOUND HERE]



//+ Jonas Raoni Soares Silva

//@ http://jsfromhell.com/number/fmt-money [v1.1]



Number.prototype.formatMoney = function(c, d, t){

	var n = this, c = isNaN(c = Math.abs(c)) ? 2 : c, d = d == undefined ? "," : d, t = t == undefined ? "." : t, s = n < 0 ? "-" : "", i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", j = (j = i.length) > 3 ? j % 3 : 0;

	return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");

};

Usage



(123456789.12345).formatMoney(2, '.', ',');