版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/csdnlinyongsheng/article/details/83016092
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<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<script>
var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 12];
var splitArray = function(num, arr, index)
{
var newArr = [];
for(var f = 0; f < arr.length;)
{
newArr.push(arr.slice(f, f+= num));
}
return newArr[index];
}
console.log(splitArray(5, arr, 0));
</script>
</body>
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