js实现一维、二维数组去重

最新推荐文章于 2022-11-29 11:42:22 发布

原创最新推荐文章于 2022-11-29 11:42:22 发布 · 853 阅读

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#js

该博客主要介绍使用JS实现数组去重，包括一维数组和二维数组。先定义两个任意数组，接着分别进行一维和二维数组去重操作，最后展示执行结果，聚焦于信息技术中JS数组处理。

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js实现一维、二维数组去重

定义两个任意数组：

var a=["1","2","4","1","o","dd","bbs1","ooi","a","6","a","s","2","89","89"];
var b=["1","5","7","5","o","ff","bbs","ww","a","6","a","s","2","3","89","ff"];

一维数组去重

function unique1(arr){
   var c = [];
     for(var i=0;i<arr.length;i++){
         if(c.indexOf(arr[i]) === -1){
             c.push(arr[i]);
         }
     }
     return c;
 }

二维数组去重

function diff(arr1,arr2){
     arr1 = unique1(arr1); // 数组中重复元素去掉
     arr2 = unique1(arr2); // 数组中重复元素去掉
     var d =[];
     var e = [];
     for(var i=0;i<arr1.length;i++){
         if(arr2.indexOf(arr1[i]) === -1){
             d.push(arr1[i])
          }
     }
     for(var j=0;j<arr2.length;j++){
         if(arr1.indexOf(arr2[j]) == -1){
             e.push(arr2[j])
         }
     }
     return {
          d,e
     }
 }

执行结果