code: function getFormatStringFrom (formattedString) {
        var chunks = formattedString.match(R_FORMAT_CHUNKS);
  
        if (!chunks) {
          // chunks will be null if there were no tokens to parse in
          // formattedString (for example, if formattedString is '2').  Coerce
          // chunks to be useful here.
          chunks = ['', ''];
  
          // If there is only one chunk, assume that the string is a number
          // followed by a token...
          // NOTE: This may be an unwise assumption.
        } else if (chunks.length === 1 ||
            // ...or if the string starts with a number component (".", "-", or a
            // digit)...
            formattedString[0].match(R_NUMBER_COMPONENT)) {
          // ...prepend an empty string here to make sure that the formatted number
          // is properly replaced by VALUE_PLACEHOLDER
          chunks.unshift('');
        }
  
        return chunks.join(VALUE_PLACEHOLDER);
      }
docs: /*!
  @param {string} formattedString
  
  @return {string}