版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/HHH_LLL/article/details/89880050
function checkArray(arr){
var result = [];
for(var i=0,len=arr.length; i<len; i++){
if(result.indexOf(arr[i]) == -1){
result.push(arr[i]);
}
}
return result.sort(function(a,b){
return a-b;
});
}
var arr=[1,1,3,4,9,1,6,9,8];
console.log(checkArray(arr));
//[ 1, 3, 4, 6, 8, 9 ]