04-js冒泡排序

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<script type="text/javascript">
function sort (arr) {
for (var i = 0;i<arr.length;i++) {
for (var j = 0; j < arr.length-i-1; j++) {
if (arr[j]>arr[j+1]) {
var temp=arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;
}
}
}
return arr;
}
var arr=[2,5,3,1,7,8,78,89];
sort(arr);

</script>