适合阅读范围：对JavaScript一无所知～离精通只差一步之遥的人
基础知识：HTML
JavaScript就这么回事1：基础知识
1创建脚本块
1:<scriptlanguage=”JavaScript”>
2:JavaScriptcodegoeshere
3:</script>
2隐藏脚本代码
1:<scriptlanguage=”JavaScript”>
2:<>
5:</script>
在不支持JavaScript的浏览器中将不执行相关代码
3浏览器不支持的时候显示
1:<noscript>
2:Hellotothenon-JavaScriptbrowser.
3:</noscript>
4链接外部脚本文件
1:<scriptlanguage=”JavaScript”src="/”filename.js"”></script>
5注释脚本
1://Thisisacomment
2:document.write(“Hello”);//Thisisacomment
3:/*
4:Allofthis
5:isacomment
6:*/
6输出到浏览器
1:document.write(“<strong>Hello</strong>”);
7定义变量
1:varmyVariable=“somevalue”;
8字符串相加
1:varmyString=“String1”+“String2”;
9字符串搜索
1:<scriptlanguage=”JavaScript”>
2:<>
7:</script>
10字符串替换
1:thisVar.replace(“Monday”,”Friday”);
11格式化字串
1:<scriptlanguage=”JavaScript”>
2:<>
21:</script>
12创建数组
1:<scriptlanguage=”JavaScript”>
2:<>
11:</script>
13数组排序
1:<scriptlanguage=”JavaScript”>
2:<>
11:</script>
14分割字符串
1:<scriptlanguage=”JavaScript”>
2:<>
10:</script>
15弹出警告信息
1:<scriptlanguage=”JavaScript”>
2:<>
5:</script>
16弹出确认框
1:<scriptlanguage=”JavaScript”>
2:<>
5:</script>
17定义函数
1:<scriptlanguage=”JavaScript”>
2:<>
8:</script>
18调用JS函数
1:<ahref=”#”onClick=”functionName()”>Linktext</a>
2:<ahref="/”javascript:functionName"()”>Linktext</a>
19在页面加载完成后执行函数
1:<bodyonLoad=”functionName();”>
2:Bodyofthepage
3:</body>
20条件判断
1:<script>
2:<>
7:</script>
21指定次数循环
1:<script>
2:<>
11:</script>
22设定将来执行
1:<script>
2:<>
8:</script>
23定时执行函数
1:<script>
2:<>
9:</script>
24取消定时执行
1:<script>
2:<>
9:</script>
25在页面卸载时候执行函数
1:<bodyonUnload=”functionName();”>
2:Bodyofthepage
3:</body>
JavaScript就这么回事2：浏览器输出
26访问document对象
1:<scriptlanguage=”JavaScript”>
2:varmyURL=document.URL;
3:window.alert(myURL);
4:</script>
27动态输出HTML
1:<scriptlanguage=”JavaScript”>
2:document.write(“<p>Here'ssomeinformationaboutthisdocument:</p>”);
3:document.write(“<ul>”);
4:document.write(“<li>ReferringDocument:“+document.referrer+“</li>”);
5:document.write(“<li>Domain:“+document.domain+“</li>”);
6:document.write(“<li>URL:“+document.URL+“</li>”);
7:document.write(“</ul>”);
8:</script>
28输出换行
1:document.writeln(“<strong>a</strong>”);
2:document.writeln(“b”);
29输出日期
1:<scriptlanguage=”JavaScript”>
2:varthisDate=newDate();
3:document.write(thisDate.toString());
4:</script>
30指定日期的时区
1:<scriptlanguage=”JavaScript”>
2:varmyOffset=-2;
3:varcurrentDate=newDate();
4:varuserOffset=currentDate.getTimezoneOffset()/60;
5:vartimeZoneDifference=userOffset-myOffset;
6:currentDate.setHours(currentDate.getHours()+timeZoneDifference);
7:document.write(“ThetimeanddateinCentralEuropeis:“+currentDate.toLocaleString());
8:</script>
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