JavaScript Number formatting & parsing library - Pure stand-alone javascript

• Status: Alpha
• Version 0.2

This is intended to be the basis of my rewrite of the jQuery plugin jQuery-NumberFormatter (https://code.google.com/p/jquery-numberformatter/), providing base methods that do not require jQuery at all or any other dependency.

Supports many parsing and formatting options, including a module for locale support.

Looking fairly good now, still a bit of work to come.

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Dependancies:

• RequireJS (only for the Unit Tests), should run fine without it

Features: (see the jQuery plugin for a rough idea, I will be adding many more also.)

• Parsing for format X to a JS number
  • Percentage Parsing
  • User defined negative number formats (-1, 1- or (1) etc)
  • Trimming of white pace around the value
  • Removal of any non-numeric chars
  • Rounding options
• Formatting a JS number to format X
  • Prefix and Postfix support
  • Rounding options
  • (TODO Percentage formatting)
  • (TODO Modularlisation)
• Locale Support for both parsing and formatting
• Modular parsing
  • Allows you to add functions to run during the parsing
• Togglable logging to console

a) default options (i.e. no locale)

var options = new JsNumberFormatter.parseNumberSimpleOptions(); 
var number = JsNumberFormatter.parseNumberSimple('-1,000,123.45', options, true);
console.log(number); // == -1000123.45

b) espanol locale parsing

   var options = new JsNumberFormatter.locales.parseOptions('es', nf);
   var number = JsNumberFormatter.parseNumberSimple('1,00', options, true);
   console.log(number); // == -1

c) no locale but with custom negative number mask (regex)

   var options = new JsNumberFormatter.parseNumberSimpleOptions().specifyAll('.', ',', false, false, false, '^\\(([^\\)]+)\\)$');
   var number = JsNumberFormatter.parseNumberSimple('(1,000,123.45)', options, true);
   console.log(number); // == -1000123.45

d) NL locale, parsing dollars (stripping non-numerics)

   var options = new JsNumberFormatter.locales.parseOptions('nl')
                                .specifyRemoveBadCh(true)
                                .specifyNegativeMatch('^.*-(.+)');
   var number = JsNumberFormatter.parseNumberSimple('$-1.000.123,45', options, true);
   console.log(number); // == -1000123.45

e) no locale, percentage parsing

   var options = new JsNumberFormatter.parseNumberSimpleOptions()
                    .specifyAll('.', ',', false, false, true)
                    .specifyPerc(true);
   var number = JsNumberFormatter.parseNumberSimple('123.45%', options, true);
   console.log(number); // == 1.2345

a) no locale

   var options = new JsNumberFormatter.formatNumberOptions();
   var numberStr = JsNumberFormatter.formatNumber(1234.56, options, true);
   console.log(numberStr); // == 1,234.56

b) espanol locale formatting

   var options = new JsNumberFormatter.locales.formatOptions('es')
                    .specifyDecimalMask('00');
   var number = JsNumberFormatter.formatNumber(1, options, true);

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Dev Env: Cloud9 - http://c9.io/ap0/jsnumberformatter

Cloud9 Setup: npm install -g mocha (for the unit tests)