标签：cti rip nbsp script 返回值 json str else log
1、a-b升序
<script>
var arr = [2, 3, 1, 5, 0];
function compare(a, b) {
return a - b;
}
console.log(arr.sort(compare));//(5) [0, 1, 2, 3, 5]
</script>
2、b-a降序
<script>
var arr = [2, 3, 1, 5, 0];
function compare(a, b) {
return b - a;
}
console.log(arr.sort(compare));//(5) [5, 3, 2, 1, 0]
</script>
3、返回值：1升序，-1降序
<script>
var arr = [2, 3, 1, 5, 0];
function compare(a, b) {
if (a > b) {
return -1;
} else if (a < b) {
return 1;
} else {
return 0;
}
}
console.log(arr.sort(compare));//(5) [5, 3, 2, 1, 0]
</script>
标签：cti rip nbsp script 返回值 json str else log
原文地址：http://www.cnblogs.com/wuqiuxue/p/7852835.html
