code: function typedValue(value) {
    if (value[0] == '!') value = value.substr(1)
    var regex = value.match(/^\/(.*)\/(i?)$/);
    var quotedString = value.match(/(["'])(?:\\\1|.)*?\1/);
  
    if (regex) {
      return new RegExp(regex[1], regex[2]);
    } else if (quotedString) {
      return quotedString[0].substr(1, quotedString[0].length - 2);
    } else if (value === 'true') {
      return true;
    } else if (value === 'false') {
      return false;
    } else if (iso8601.test(value) && value.length !== 4) {
      return new Date(value);
    } else if (!isNaN(Number(value))) {
      return Number(value);
    }
  
    return value;
  }
docs: Convert String to Number, Date, or Boolean if possible. Also strips ! prefix