js算法

//得到没有重复元素的数组

1 function getUniqueNodes(arr){
2   var result = [];
3   for(var i=0;i<arr.length;i++){
4     if(arr.indexOf(arr[i])==i){
5       result.push(arr[i]);
6     }
7   }   
8   return result;
9 }

//判断android还是iOS设备进行页面跳转

<script type="text/javascript">
　　if (/(iPhone|iPad|iPod|iOS)/i.test(navigator.userAgent)) {
       // alert(navigator.userAgent);
       window.location.href ="https://itunes.apple.com/cn/app/%E9%87%91%E6%89%8D%E5%AD%A6%E9%99%A2/id1332899101?mt=8"
   } else if (/(Android)/i.test(navigator.userAgent)) {
       window.location.href ="http://www.runoob.com/java/java-tutorial.html"
   }
</script>

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