方法一:
代碼如下:varary=newArray("111","22","33","111");
vars=ary.join(",")+",";
for(vari=0;i<ary.length;i++){
if(s.replace(ary[i]+",","").indexOf(ary[i]+",")>-1){
alert("數(shù)組中有重復(fù)元素："+ary[i]);
break;
}
}
方法二:
代碼如下:varary=newArray("111","22","33","111");
varnary=ary.sort();
for(vari=0;i<ary.length;i++){
if(nary[i]==nary[i+1]){
alert("數(shù)組重復(fù)內(nèi)容："+nary[i]);
}}
方法三:
代碼如下:functionisRepeat(arr){
varhash={};
for(variinarr){
if(hash[arr[i]])returntrue;
hash[arr[i]]=true;
}
returnfalse;
}