At a fundamental level it’s important to understand how JavaScript timers work. Often times they behave unintuitively because of the single thread which they are in. Let’s start by examining the three functions to which we have access that can
javascript操作SELECT中option大全1:判斷select選項中是否存在itemfunction isExitItem(objSelect, objItemValue) { var isExit = false; for (var i = 0; i < objSelect.options.length; i++) { if (objSelect.options[i].value == objItemValue) { isExit
<script language="javascript">function setValue0(){ var znum,i,fstr,t,picss,n; var arr1=new Array(); var arrtmp=new Array(); var arrs=new Array(); var arrb=new Array(); picss="1.jpg,1b.jpg|2.jpg,2b.jpg"; znum=5; arr1=picss.split('|'); for(n=0;
使用JavaScript中的ActiveXObject填充並設定Excel格式 var XLObj = new ActiveXObject("Excel.Application"); var xlBook = XLObj.Workbooks.Add; //新增活頁簿 var ExcelSheet = xlBook.Worksheets(1);
/* var obj=new Object();//建立一個對象 obj.name="兔子01";//給添加添加name屬性 obj.age="24";//給對象添加age屬性 obj.showName=function(){//給對象添加showName方法 alert("My Name is "+this.name); } obj.showAge=function(){//給對象添加showAge方法 alert("My Age is "+this.age); }
安裝方法:1.IE屬性-進階-禁止指令碼調試,的勾去掉.2.下載Microsoft Script Debugger 並安裝下面對Debugger.html檔案進行調試,代碼如下:<HTML><HEAD><script language="javascript"> function MyDebugger() { var a = 1,b = 2; var t; t = a; a = b;