JavaScript数组倒序排序实现

<!DOCTYPE html>
<html>
<body>
<p id="demo">
Click the button to sort the array.
</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction()
{
var points = [40,100,1,5,25,10];
points.sort(function(a,b){return b-a});
var x=document.getElementById("demo");
x.innerHTML=points;
}
</script>
</body>
</html>