繁體中文当前位置: 首页 > 图文教程 > 网络编程 > Javascript > Js中sort()方法的用法
- Javascript
- form中限制文本字节数js代码
- use jscript with List Proxy Server Information
- use jscript List Installed Software
- List Installed Software Features
- List Information About the Binary Files Used by an Application
- List the Codec Files on a Computer
- List the UTC Time on a Computer
- List Installed Hot Fixes
- excel操作之Add Data to a Spreadsheet Cell
- Add Formatted Data to a Spreadsheet
- Apply an AutoFormat to an Excel Spreadsheet
- JavaScript语法着色引擎（demo及打包文件下载）
- 类之Prototype.js学习
- 一款JavaScript压缩工具：X2JSCompactor
- iis6+javascript Add an Extension File
- jscript之Open an Excel Spreadsheet
- jscript之Read an Excel Spreadsheet
- jscript之List Excel Color Values
- 去除图像或链接黑眼圈的两种方法总结
- Add a Formatted Table to a Word Document
Javascript 中的 Js中sort()方法的用法
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-12 浏览: 200 ::
收藏到网摘: n/a
返回一个元素已经进行了排序的 Array 对象。
arrayobj.sort(sortfunction)
参数
arrayObj
必选项。任意 Array 对象。
sortFunction
可选项。是用来确定元素顺序的函数的名称。如果这个参数被省略，
那么元素将按照 ASCII 字符顺序进行升序排列。
说明
sort 方法将 Array 对象进行适当的排序；
在执行过程中并不会创建新的 Array 对象。
如果为 sortfunction 参数提供了一个函数，那么该函数必须返回下列值之一：
负值，如果所传递的第一个参数比第二个参数小。
零，如果两个参数相等。
正值，如果第一个参数比第二个参数大。
Demo1（默认按字母排序）：
复制代码 代码如下:
<script language="javascript">
var nameArr = new Array("douguoqiang","hedan","redhacker","panliu888","maxuan","xuejianping","lanse","zhangsan","lisi","wangwu");
nameArr.sort();
for (var i = 0; i < nameArr.length; i++) {
document.writeln(nameArr[i]);
}
</script>
var nameArr = new Array("douguoqiang","hedan","redhacker","panliu888","maxuan","xuejianping","lanse","zhangsan","lisi","wangwu");
nameArr.sort();
for (var i = 0; i < nameArr.length; i++) {
document.writeln(nameArr[i]);
}
</script>
结果：douguoqiang hedan lanse lisi maxuan panliu888 redhacker wangwu xuejianping zhangsan
Demo（数字排序，sort(prama)方法带参数）：
复制代码 代码如下:
<script>
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(function compare(a,b){return a-b;});
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(function compare(a,b){return a-b;});
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
结果：
1
2
4
5
12
23
23
34
Demo3（Demo3反排序）：
复制代码 代码如下:
<script>
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(function compare(a,b){return b-a;});
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(function compare(a,b){return b-a;});
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
结果：
34
23
23
12
5
4
2
1
Demo4（Demo3的第二种写法）：
复制代码 代码如下:
<script>
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(new Function("a","b","return a-b;"));
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(new Function("a","b","return a-b;"));
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
结果：
1
2
4
5
12
23
23
34
Demo5（Demo3的第三种写法）：
复制代码 代码如下:
<script>
function compare(a,b) {
return a-b;
}
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(compare);
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
function compare(a,b) {
return a-b;
}
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(compare);
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
结果：
1
2
4
5
12
23
23
34
Demo6（Demo3的第四种写法）：
复制代码 代码如下:
<script>
var compare = function(a,b) {
return a-b;
}
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(compare);
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
var compare = function(a,b) {
return a-b;
}
var numArr = new Array(12,23,1,4,23,34,2,5);
numArr.sort(compare);
for (var i = 0; i<numArr.length; i++) {
document.write(numArr[i] +"<br>");
}
</script>
结果：
1
2
4
5
12
23
23
34
评论 (0) All
