Pastable version of Rails-like number_to_currency formatting

<pre class='prettyprint' language='javascript'>number_to_currency: function (number, options) {
  try {
    var options   = options || {};
    var precision = options[&quot;precision&quot;] || 2;
    var unit      = options[&quot;unit&quot;] || &quot;$&quot;;
    var separator = precision &gt; 0 ? options[&quot;separator&quot;] || &quot;.&quot; : &quot;&quot;;
    var delimiter = options[&quot;delimiter&quot;] || &quot;,&quot;;
  
    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 || &quot;,&quot;;
    var separator = separator || &quot;.&quot;;
    
    var parts = number.toString().split('.');
    parts[0] = parts[0].replace(/(\d)(?=(\d\d\d)+(?!\d))/g, &quot;$1&quot; + delimiter);
    return parts.join(separator);
  } catch(e) {
    return number
  }
}</pre>
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Pastable version of Rails-like number_to_currency formatting