var readMore = function()

in JSLib/src/cache.js [734:765]

• 29 lines of code
• 15 McCabe index (conditional complexity)

            var readMore = function (readIndex, readCount) {
                if (!canceled) {
                    if (count >= 0 && arr.length >= count) {
                        deferred.resolve(arr);
                    } else {
                        pendingReadRange = that.readRange(readIndex, readCount).then(function (data) {
                            for (var i = 0, length = data.length; i < length && (count < 0 || arr.length < count); i++) {
                                var dataIndex = backwards ? length - i - 1 : i;
                                var item = data[dataIndex];
                                if (predicate(item)) {
                                    var element = {
                                        index: readIndex + dataIndex,
                                        item: item
                                    };

                                    backwards ? arr.unshift(element) : arr.push(element);
                                }
                            }

                            // Have we reached the end of the collection?
                            if ((!backwards && data.length < readCount) || (backwards && readIndex <= 0)) {
                                deferred.resolve(arr);
                            } else {
                                var nextIndex = backwards ? Math.max(readIndex - pageSize, 0) : readIndex + readCount;
                                readMore(nextIndex, pageSize);
                            }
                        }, function (err) {
                            deferred.reject(err);
                        });
                    }
                }
            };