code: function( value ) {
  			var error;
  			try {
  				if ( value.length ) {
  					error = {
  						'rule': 'isEmpty',
  						'message': 'ERROR:provided value[' + value +'] is not empty.'
  					};
  					return [ error ];
  				}
  			} catch ( e ) {
  				if ( _.isPlainObject( value ) ) {
  					for ( var key in value ) {
  						if ( value.hasOwnProperty( key ) ) {
  							error = {
  								'rule': 'isEmpty',
  								'message': 'ERROR:provided value[' + value +'] is not empty.'
  							};
  							return [ error ];
  						}
  					} // end FOR key
  				}
  				error = {
  					'rule': 'isEmpty',
  					'message': 'ERROR:input data type is not compatible with this rule.'
  				};
  				return [ error ];
  			}
  		}
docs: end METHOD isNull()