nl_tokens: Returns the class name of an object from it s class string .
pl_tokens: function classOf ( value ) { var retVal , valueType , toString ; if ( typeof value === _undefined ) { retVal = _Undefined ; } else if ( value === null ) { retVal = _Null ; } else { toString = value . toString . name === 'toString' ? Object . prototype . toString : value . toString ; valueType = toString . call ( value ) ; retVal = valueType . substring ( 8 , valueType . length - 1 ) ; if ( retVal === _Number && isNaN ( <mask> ) ) { retVal = 'NaN' ; } } return retVal ; }