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javascript 删除数组中重复值的几种方法介绍

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Release: 2016-06-01 09:54:29
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具体方法请看下面代码,每种方法都附带了解释,大家可以自己在本网站的在线代码调试工具中运行一下每种方法。

<code class="language-javascript">/*方法一: 1,'1' 会被认为是相同的; 所有hash对象,如:{x;1},{y:1}会被认为是相同的 //10ms */
Array.prototype.unique=function(){
  var newArr=[],obj={};
  for(var i=0,len=this.length;i<len if newarr.push obj return newarr array.prototype.unique="function(){" var for i="0,len=this.length;i<len;i++){" j="i+1,len=newArr.length;j<len;j++)" newarr.splice j-- len arr0='[11,21,221,13,24,"134","1",{x:1,y:1},{name:"pobaby",age:"12",hobby:"football"},{name:"pobaby1",age:"121",hobby:"football1"}];' arr="[],num;" num="Math.floor(Math.random()*50);" arr.push t1="new" date console.log arr.unique t2="new"></len></code>
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