lib/notifier.js
function(message) {
		var identifier = _makeIdentifier(message);
		if (typeof _filter[identifier] !== 'undefined' && _filter[identifier] < ((+new Date()) + 10 * 60000)) {
			console.error('duplicated error', identifier, message);
			return _filter[identifier];
		}

		_filter[identifier] = +new Date();
		return false;
	}
function(message) {
		var identifier = _makeIdentifier(message);
		if (typeof _filter[identifier] !== 'undefined' && _filter[identifier] < ((+new Date()) + 10 * 60000)) {
			console.error('duplicated error', identifier, message);
			return _filter[identifier];
		}

		_filter[identifier] = +new Date();
		return false;
	}
function ( message ) { var identifier = _makeIdentifier ( message ) ; if ( typeof _filter [ identifier ] !== 'undefined' && _filter [ identifier ] < ( ( + new Date ( ) ) + 10 * 60000 ) ) { console . error ( 'duplicated error' , identifier , message ) ; return _filter [ identifier ] ; } _filter [ identifier ] = + new Date ( ) ; return false ; }
check whether duplicated message.
@param  {object} message
@return {boolean | integer} whether duplicated
check whether duplicated message .