js数组排序

最新推荐文章于 2025-02-22 00:00:00 发布

原创最新推荐文章于 2025-02-22 00:00:00 发布 · 572 阅读

0 ·

CC 4.0 BY-SA版权

Front End 专栏收录该内容

119 篇文章

订阅专栏

实现的功能是：对数组中的数字排序。

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<SCRIPT LANGUAGE="JavaScript">
	<!--
 
		window.onload = function() {
			// 原数组
			var arr = new Array(34,23,9,19,66,28);
 
			arr.sort(); // ascii字母排序，并不是按照数字从小到大或从大到小排序
 
			arr.sort(function(a,b){ // 从小到大排序
				return a < b ?-1:1;
			});
 
			// 输出测试
			for (var i=0; i<arr.length; i++)
			{
				var span = document.createElement('span');
				span.innerText = arr[i];
				if (i != arr.length-1)
				{
					span.innerText = span.innerText + ",";
				}
				document.body.appendChild(span);
			}
 
			arr.sort(function(a,b){ // 从大到小排序
				return a < b ?1:-1;
			});
 
			var br = document.createElement('span');
			br.innerHTML = '<br>';
			document.body.appendChild(br);
 
			// 输出测试
			for (var i=0; i<arr.length; i++)
			{
				var span = document.createElement('span');
				span.innerText = arr[i];
				if (i != arr.length-1)
				{
					span.innerText = span.innerText + ",";
				}
				document.body.appendChild(span);
			}
 
			var   ary = new Array();
			var a1 = new Array(1,2);
			var a2 = new Array(6,8);
			var a3 = new Array(3,4);
			ary.push(a1);
			ary.push(a2);
			ary.push(a3);
 
			var newArr = new Array();
			var a ;
			for (var i=0;i<ary.length ;i++ )
			{
				var ar = ary[i];
				for (var j=0;j<ary[i].length ;j++ )
				{
					var n = ary[i][j];
					newArr.push(n);
				}		
			}
 
			newArr.sort(function(a,b) {return a > b? 1:-1;});
 
			 br = document.createElement('span');
				br.innerHTML = '<br>------------------------';
				document.body.appendChild(br);
 
			// 输出测试
				for (var i=0; i<newArr.length; i++)
				{
					var span = document.createElement('span');
					span.innerText = newArr[i];
					if (i != newArr.length-1)
					{
						span.innerText = span.innerText + ",";
					}
					document.body.appendChild(span);
				}
 
			
		
	}
		
	//-->
	</SCRIPT>
</HEAD>
 
<BODY>
</BODY>
</HTML>

输出：

9,19,23,28,34,66
66,34,28,23,19,9
------------------------1,2,3,4,6,8