JS实现二维数组元素的排列组合运算简单示例

时间:2020-05-16 阿来小同学人气:0

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：

希望本文所述对大家JavaScript程序设计有所帮助。

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