ASP.NET AJAX 说明文档->客户端引用->全局命名空间->JavaScript 基础类型扩展->Array 类型扩展->clear 函数

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Array.clear 函数

从 Array对象中移除所有元素。静态函数，无需实例化。

语法

Array.clear(array);

参数

说明

array

要进行清理的数组。

备注

使用 clear函数从 Array对象中移除所有元素。数组的长度在处理后就为0

下面的示例展示了如何使用 clear 函数。

CS

<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Sample</title>
</head>
<body>
    <form id="form1" runat="server">
               <asp:ScriptManager runat="server" ID="ScriptManager1">
               </asp:ScriptManager>
    </form>
</body>
</html>

<script type="text/javascript">

    Type.registerNamespace('Samples');

    Samples.ArrayExample = function(){}
    Samples.ArrayExample.prototype = {

        // Create and display a table based on array content.
        displayTable: function(arrayTable) 
        {
            document.write("<table border=on>");
            var rows = arrayTable[0][0].length;

            for(x=0; x<=rows; x++)
            {
               document.write("<tr>");
               var columns = arrayTable[x].length - 1;
               for(y=0; y<=columns; y++)
               {
                    document.write("<td>", arrayTable[x][y], "</td>");
               }
               document.write("/<tr>");
            }
            document.write("</table>");

            // Clean up.
            Array.clear(arrayTable);
        },

        // Create table data.
        createTableData: function() 
        {
               var costsArray = [];

               var headerRow = new Array("ID", "Name", "Costs");
               var firstRow = new Array("1", "ruler", "1.30");
               var secondRow = new Array("2", "binder", "4.75");

               Array.add(costsArray, headerRow);
               Array.add(costsArray, firstRow);
               Array.add(costsArray, secondRow);

               return costsArray;
        }  
    }

    Samples.ArrayExample.registerClass('Samples.ArrayExample');

    var myArraySample = new Samples.ArrayExample();
    var myTable = myArraySample.createTableData();
    myArraySample.displayTable(myTable);

</script>

VB

<%@ Page Language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">


<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Sample</title>
</head>
<body>
    <form id="form1" runat="server">
               <asp:ScriptManager runat="server" ID="ScriptManager1">
               </asp:ScriptManager>
    </form>
</body>
</html>

<script type="text/javascript">

    Type.registerNamespace('Samples');

    Samples.ArrayExample = function(){}
    Samples.ArrayExample.prototype = {

        // Create and display a table based on array content.
        displayTable: function(arrayTable) 
        {
            document.write("<table border=on>");
            var rows = arrayTable[0][0].length;

            for(x=0; x<=rows; x++)
            {
               document.write("<tr>");
               var columns = arrayTable[x].length - 1;
               for(y=0; y<=columns; y++)
               {
                    document.write("<td>", arrayTable[x][y], "</td>");
               }
               document.write("/<tr>");
            }
            document.write("</table>");

            // Clean up.
            Array.clear(arrayTable);
        },

        // Create table data.
        createTableData: function() 
        {
               var costsArray = [];

               var headerRow = new Array("ID", "Name", "Costs");
               var firstRow = new Array("1", "ruler", "1.30");
               var secondRow = new Array("2", "binder", "4.75");

               Array.add(costsArray, headerRow);
               Array.add(costsArray, firstRow);
               Array.add(costsArray, secondRow);

               return costsArray;
        }  
    }

    Samples.ArrayExample.registerClass('Samples.ArrayExample');

    var myArraySample = new Samples.ArrayExample();
    var myTable = myArraySample.createTableData();
    myArraySample.displayTable(myTable);

</script>

请参见

Array 对象
Array 类型扩展
JScript Language Reference

链接有很多都不正确，翻译后，会慢慢进行补充，英语不好如果有译的不对的地方希望大家一定要及时指出，谢谢大家关注
--邹健