JS把数组中相同元素组合成一个新的数组问题
<!DOCTYPE HTML>
<html>
<head>
<script type = "text/javascript">
Array.prototype.remove=function(dx)
{
if(isNaN(dx)||dx>this.length){return false;}
for(var i=0,n=0;i<this.length;i++)
{
if(this[i]!=this[dx])
{
this[n++]=this[i]
}
}
this.length-=1
}
var arr=['1','1','1','2','1','','3','4','5','5','6','7','6','8','9','1','7'];
newArr = [],
trarr = [],
kongFl = false,
n = 0;
var arr1 = [];
for(var i in arr){
arr1[i] = arr[i];
}
for(var i = 0; i < arr.length; i++) {
var index = arr[i];
if(index == ''){
kongFl = true;
}else{
kongFl = false;
}
for(var j = 0,len = arr1.length;j<len;j++){
if(index == arr1[j]){
trarr.push(arr1[j]);
arr1.remove(j);
}
}
if(trarr.length!=0 || kongFl){
newArr.push(trarr);
trarr = [];
}
}
console.log(newArr)
</script>
</head>
<body>
</body>
</html>
今天看到一个博客，发现他那个有个问题，自己就写了一下，一起分享一下
