js 按照數值大小排序

 1 <script type="text/javascript">
 2 
 3 function sortNumber(a,b)
 4 {
 5 return a - b
 6 }
 7 
 8 var arr = new Array(6)
 9 arr[0] = "10"
10 arr[1] = "5"
11 arr[2] = "40"
12 arr[3] = "25"
13 arr[4] = "1000"
14 arr[5] = "1"
15 
16 document.write(arr + "<br />")
17 document.write(arr.sort(sortNumber))
18 
19 </script>

輸出：10,5,40,25,1000,1
1,5,10,25,40,1000