Function _binarySearch

public/javascripts/async.js:999–1011

(sequence, item, compare)

        }

        function _binarySearch(sequence, item, compare) {
            var beg = -1,
                end = sequence.length - 1;
            while (beg < end) {
                var mid = beg + ((end - beg + 1) >>> 1);
                if (compare(item, sequence[mid]) >= 0) {
                    beg = mid;
                } else {
                    end = mid - 1;
                }
            }
            return beg;
        }

        function _insert(q, data, priority, callback) {
            if (callback != null && typeof callback !== "function") {