const isDefined =  function( object, paramsArray ){
        
	let retval = true;

	let process = function( ){
	    paramsArray.forEach(function(param) {
		let currParam = object[param]
		if( currParam == undefined || !currParam ){
		    retval = false;
		}
	    }, this);
	    return retval;
	};

	if( !Array.isArray(paramsArray) ){

	    paramsArray = (typeof(paramsArray) == "string") ?  paramsArray.split(",") : undefined;

	    if ( !paramsArray ){
		return false;
	    }else{
		return process();
	    }

	}else{          

	    return process();

	}

};

exports.isDefined = exports.is_defined = isDefined;