<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<script>
//原数组
var arr=[1,2,3,4,1,2,6,7,3,3,8]
//新数组
var t=[];
t[0]=arr[0];
for(var i=0;i<arr.length;i++){
for(var j=0;j<t.length;i++){
if(arr[i]==t[j]){
break;
}
if(j==t.length-1){
t.push(arr[i]);
}
}
}
console.log(t)
</script>
</body>
</html>js--array deduplication
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Origin blog.csdn.net/qq_63533863/article/details/123796442
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