JS实现二维数组元素的排列组合运算简单示例

2019-11-19 12:12:29

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本文实例讲述了JS实现二维数组元素的排列组合运算。分享给大家供大家参考，具体如下：

用js实现二维数组里面的元素排列组合一个小demo；

源码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>JS数组排列组合运算</title></head></head><body>  <textarea id="value" style="width:600px; height:500px;"></textarea></body><script type="text/javascript">  var arrays = [["a0","a1","a2","a3"],["b0","b1","b2","b3"],["c0","c1","c2","c3"],["d0","d1","d2","d3"]];  var array = getArrayByArrays(arrays);  document.getElementById('value').value = array+"....."+array.length;  function getArrayByArrays(arrays)  {    var arr = [""];    for(var i = 0;i<arrays.length;i++)    {      arr = getValuesByArray(arr,arrays[i]);    }    return arr;  }  function getValuesByArray(arr1,arr2)  {    var arr = [];    for(var i=0;i<arr1.length;i++)    {      var v1 = arr1[i];      for(var j=0;j<arr2.length;j++)      {        var v2 = arr2[j];        var value = v1+v2;        arr.push(value);      };    };    return arr;  }</script></html>

运行结果：