| 22 设定将来执行
1: <script>
2: <!--
3: function hello() {
4: window.alert(“Hello”);
5: }
6: window.setTimeout(“hello()”,5000);
7: // -->
8: </script>
23 定时执行函数
1: <script>
2: <!--
3: function hello() {
4: window.alert(“Hello”);
5: window.setTimeout(“hello()”,5000);
6: }
7: window.setTimeout(“hello()”,5000);
8: // -->
9: </script>
24 取消定时执行
1: <script>
2: <!--
3: function hello() {
4: window.alert(“Hello”);
5: }
6: var myTimeout = window.setTimeout(“hello()”,5000);
7: window.clearTimeout(myTimeout);
8: // -->
9: </script>
25 在页面卸载时候执行函数
1: <body onUnload=”functionName();”>
2: Body of the page
3: </body>
JavaScript就这么回事2：浏览器输出
26 访问document对象
1: <script language=”JavaScript”>
2: var myURL = document.URL;
3: window.alert(myURL);
4: </script>
27 动态输出HTML
1: <script language=”JavaScript”>
2: document.write(“<p>Here’s some information about this document:</p>”);
3: document.write(“<ul>”);
4: document.write(“<li>Referring Document: “ 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: <script language=”JavaScript”>
2: var thisDate = new Date();
3: document.write(thisDate.toString());
4: </script>
30 指定日期的时区
1: <script language=”JavaScript”>
2: var myOffset = -2;
3: var currentDate = new Date();
4: var userOffset = currentDate.getTimezoneOffset()/60;
5: var timeZoneDifference = userOffset - myOffset;
6: currentDate.setHours(currentDate.getHours() timeZoneDifference);
7: document.write(“The time and date in Central Europe is: “ currentDate.toLocaleString());
8: </script>
31 设置日期输出格式
1: <script language=”JavaScript”>
2: var thisDate = new Date();
3: var thisTimeString = thisDate.getHours() “:” thisDate.getMinutes();
4: var thisDateString = thisDate.getFullYear() “/” thisDate.getMonth() “/” thisDate.getDate();
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