20条件判断
--
varuserChoice=window.confirm("ChooseOKorCancel");
varresult=(userChoice==true)?
"OK":
"Cancel";
document.write(result);
//-->
21指定次数循环
--
varmyArray=newArray(3);
myArray[0]="Item0";
myArray[1]="Item1";
myArray[2]="Item2";
for(i=0;i document.write(myArray[i]+" } //--> 22设定将来执行 -- functionhello(){ window.alert("Hello"); } window.setTimeout("hello()",5000); //--> 23定时执行函数 -- functionhello(){ window.alert("Hello"); window.setTimeout("hello()",5000); } window.setTimeout("hello()",5000); //--> 24取消定时执行 -- functionhello(){ window.alert("Hello"); } varmyTimeout=window.setTimeout("hello()",5000); window.clearTimeout(myTimeout); //--> 25在页面卸载时候执行函数 Bodyofthepage JavaScript就这么回事2: 浏览器输出 26访问document对象 varmyURL=document.URL; window.alert(myURL); 27动态输出HTML document.write(" Here’ssomeinformationaboutthisdocument:
");
document.write("
document.write("
"+document.referrer+"
document.write("
"+document.domain+"
document.write("
"+document.URL+"
document.write("
");
28输出换行
document.writeln("a");
document.writeln("b");
29输出日期
varthisDate=newDate();
document.write(thisDate.toString());
30指定日期的时区
varmyOffset=-2;
varcurrentDate=newDate();
varuserOffset=currentDate.getTimezoneOffset()/60;
vartimeZoneDifference=userOffset-myOffset;
currentDate.setHours(currentDate.getHours()+timeZoneDifference);
document.write("ThetimeanddateinCentralEuropeis:
"+currentDate.toLocaleString());
31设置日期输出格式
varthisDate=newDate();
varthisTimeString=thisDate.getHours()+":
"+thisDate.getMinutes();
varthisDateString=thisDate.getFullYear()+"/"+thisDate.getMonth()+"/"+thisDate.getDate();
document.write(thisTimeString+"on"+thisDateString);
32读取URL参数
varurlParts=document.URL.split("?
");
varparameterParts=urlParts[1].split("&");
for(i=0;i varpairParts=parameterParts[i].split("="); varpairName=pairParts[0]; varpairValue=pairParts[1]; document.write(pairName+": "+pairValue); } 你还以为HTML是无状态的么? 33打开一个新的document对象 functionnewDocument(){ document.open(); document.write(" ThisisaNewDocument.
document.close();
}
34页面跳转
window.location="";
35添加网页加载进度窗口
varplaceHolder=window.open('','placeholder','width=200,height=200');
Thisisthemainpage