JavaScript版几种常见排序算法

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// ---------- 一些排序算法// js 利用sort进行排序systemSort: function(array) {    return array.sort(function(a, b) {        return a - b;    });},// 冒泡排序bubbleSort: function(array) {    var i = 0,    len = array.length,    j, d;    for (; i < len; i++) {        for (j = 0; j < len; j++) {            if (array[i] < array[j]) {                d = array[j];                array[j] = array[i];                array[i] = d;            }        }    }    return array;},// 快速排序quickSort: function(array) {    //var array = [8,4,6,2,7,9,3,5,74,5];    //var array = [0,1,2,44,4,324,5,65,6,6,34,4,5,6,2,43,5,6,62,43,5,1,4,51,56,76,7,7,2,1,45,4,6,7];    var i = 0;    var j = array.length - 1;    var Sort = function(i, j) {        // 结束条件        if (i == j) {            return        };        var key = array[i];        var stepi = i; // 记录开始位置        var stepj = j; // 记录结束位置        while (j > i) {            // j <<-------------- 向前查找            if (array[j] >= key) {                j--;            } else {                array[i] = array[j]                //i++ ------------>>向后查找                while (j > ++i) {                    if (array[i] > key) {                        array[j] = array[i];                        break;                    }                }            }        }        // 如果第一个取出的 key 是最小的数        if (stepi == i) {            Sort(++i, stepj);            return;        }        // 最后一个空位留给 key        array[i] = key;        // 递归        Sort(stepi, i);        Sort(j, stepj);    }    Sort(i, j);    return array;},// 插入排序insertSort: function(array) {    // http://baike.baidu.com/image/d57e99942da24e5dd21b7080    // http://baike.baidu.com/view/396887.htm    //var array = [0,1,2,44,4,324,5,65,6,6,34,4,5,6,2,43,5,6,62,43,5,1,4,51,56,76,7,7,2,1,45,4,6,7];    var i = 1,    j, step, key, len = array.length;    for (; i < len; i++) {        step = j = i;        key = array[j];        while (--j > -1) {            if (array[j] > key) {                array[j + 1] = array[j];            } else {                break;            }        }        array[j + 1] = key;    }    return array;},// 希尔排序//Jun.array.shellSort(Jun.array.df(10000));shellSort: function(array) {    // http://zh.wikipedia.org/zh/%E5%B8%8C%E5%B0%94%E6%8E%92%E5%BA%8F    // var array = [13,14,94,33,82,25,59,94,65,23,45,27,73,25,39,10];    var stepArr = [1750, 701, 301, 132, 57, 23, 10, 4, 1]; // reverse() 在维基上看到这个最优的步长 较小数组    //var stepArr = [1031612713, 217378076, 45806244, 9651787, 2034035, 428481, 90358, 19001, 4025, 836, 182, 34, 9, 1]//针对大数组的步长选择    var i = 0;    var stepArrLength = stepArr.length;    var len = array.length;    var len2 = parseInt(len / 2);    for (; i < stepArrLength; i++) {        if (stepArr[i] > len2) {            continue;        }        stepSort(stepArr[i]);    }    // 排序一个步长    function stepSort(step) {        //console.log(step) 使用的步长统计        var i = 0,        j = 0,        f, tem, key;        var stepLen = len % step > 0 ? parseInt(len / step) + 1 : len / step;        for (; i < step; i++) { // 依次循环列            for (j = 1;            /*j < stepLen && */            step * j + i < len; j++) { //依次循环每列的每行                tem = f = step * j + i;                key = array[f];                while ((tem -= step) >= 0) { // 依次向上查找                    if (array[tem] > key) {                        array[tem + step] = array[tem];                    } else {                        break;                    }                }                array[tem + step] = key;            }        }    }    return array;}
本文转载：http://www.cnblogs.com/idche/archive/2011/02/16/1956397.html
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