jQuery - Selectors选择器 - first第一个元素
Selectors/first
:first
Overview
Demo
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script>
$(document).ready(function(){
$("tr:first").css("font-style", "italic");
});
</script>
<style>
td { color:blue; font-weight:bold; }
</style>
</head>
<body>
<table>
<tr><td>Row 1</td></tr>
<tr><td>Row 2</td></tr>
<tr><td>Row 3</td></tr>
</table>
</body>
</html>
[jQuery - Selectors选择器 - first第一个元素 - 文档]
http://docs.jquery.com/Selectors/first
[jQuery - 官方网站]
[jQuery - download下载]
当前版本, http://docs.jquery.com/Release:jQuery_1.3.1
下载列表, http://docs.jquery.com/Downloading_jQuery
最新代码, http://code.jquery.com/nightlies/jquery-nightly.js
[jQuery - 相关论坛]
http://groups.google.com/group/jquery-en
http://WebDev.board.newsmth.net/
http://WebGeeks.board.newsmth.net/
http://bbs.pku.edu.cn/, homepage看版
http://forum.csdn.net/SList/JavaScript/
[jQuery - 关键词]
jQuery
[jQuery - 文档]
http://docs.jquery.com/Main_Page
[jQuery - Core核心]
each迭代, http://docs.jquery.com/Core/each
jQuery, http://docs.jquery.com/Core/jQuery
[jQuery - Ajax]
jQuery的Ajax文档, http://docs.jquery.com/Ajax/jQuery.ajax
jQuery的Ajax选项，http://docs.jquery.com/Ajax/jQuery.ajax#options
dataType选项，设置返回值类型
timeout选项，用于设置超时
与PHP集成可以使用json_encode返回结果, http://www.php.net/manual/zh/function.json-encode.php
readyState获取请求操作的当前状态, http://msdn2.microsoft.com/en-us/library/ms534361.aspx
[jQuery - 特效]
jQuery淡入特效,http://docs.jquery.com/Effects/fadeIn
[jQuery - Selectors选择器]
表单元素选择器, http://docs.jquery.com/DOM/Traversing/Selectors#Form_Selectors
属性相等选择器，http://docs.jquery.com/Selectors/attributeEquals
checked选中, http://docs.jquery.com/Selectors/checked
:input匹配所有input, textarea, select和button元素, http://docs.jquery.com/Selectors/input
选择器在选择body中出现的title标记时，会出现和预期不同的效果。
element按指定名称匹配所有元素, http://docs.jquery.com/Selectors/element
lastChild选择最后一个子元素, http://docs.jquery.com/Selectors/lastChild
first第一个元素, http://docs.jquery.com/Selectors/first
[jQuery - Attributes属性]
val获取第一个匹配元素value属性的内容, http://docs.jquery.com/Attributes/val
[jQuery - 常用函数]
filter, 用于在集合中过滤元素
[jQuery - Events事件]
hover, http://docs.jquery.com/Events/hover
submit提交, http://docs.jquery.com/Events/submit
focus响应每个匹配元素的焦点事件, http://docs.jquery.com/Events/focus
click单击, 触发每个匹配元素的单击事件, 绑定函数到每个匹配元素的单击事件, http://docs.jquery.com/Events/click
[jQuery - Manipulation操作]
after在每个匹配的元素之后插入内容, http://docs.jquery.com/Manipulation/after
[jQuery - Traversing遍历器]
filter过滤, http://docs.jquery.com/Traversing/filter
find查找, http://docs.jquery.com/Traversing/find
[jQuery - Tutorials教程]
[jQuery - plugins插件]
Easing动画, http://jquery.com/plugins/project/easing
jCarouseLite, 走马灯效果, http://jquery.com/plugins/project/jCarouselLite
tableFilter, 表过滤器, http://jquery.com/plugins/project/tableFilter
Rounded Corner圆角矩形, http://docs.jquery.com/Tutorials:Rounded_Corners#Rounded_Corners_Without_Images
Jeditable原位置编辑器插件, http://plugins.jquery.com/project/jeditable
Cookie, http://plugins.jquery.com/project/Cookie
[jQuery - Utilities实用工具]
trim去掉字符串前后的空格, http://docs.jquery.com/Utilities/jQuery.trim
[jQuery - UI]
UI, http://docs.jquery.com/UI
UI/Theming, http://docs.jquery.com/UI/Theming
[jQuery - 参考资料]
http://www.json.org/, http://www.json.org/json.js
JScript (Windows Script Technologies):, http://msdn2.microsoft.com/en-us/library/hbxc2t98.aspx
prototype Property (JScript 5.6):, http://msdn2.microsoft.com/en-us/library/f5s9ycex.aspx
parseInt Method (JScript 5.6):, http://msdn2.microsoft.com/en-us/library/x53yedee.aspx
toString Method (JScript 5.6):, http://msdn2.microsoft.com/en-us/library/k6xhc6yc.aspx
HTTP Status Codes (Windows):, http://msdn2.microsoft.com/en-us/library/Aa384325.aspx
HTML+TIME:, http://msdn2.microsoft.com/en-us/library/ms533112.aspx
HTA:APPLICATION对象, http://msdn2.microsoft.com/en-us/library/ms536495.aspx
How to Build Tables Dynamically:如何动态构建表格, http://msdn2.microsoft.com/en-us/library/ms532998.aspx
close Method (window):, http://msdn2.microsoft.com/en-us/library/ms536367.aspx
ECMA标准下载, http://www.ecma-international.org/publications/standards/Ecma-262.htm
parseInt Method (JScript 5.6): - IE标准, http://msdn2.microsoft.com/en-us/library/x53yedee.aspx
fireEvent Method (A, ABBR, ACRONYM, ...):, http://msdn2.microsoft.com/en-us/library/ms536423.aspx
SunSpider JavaScript Benchmark: JavaScript性能测试, http://webkit.org/perf/sunspider-0.9/sunspider.html
[jQuery - 综合实例]
实现前一个和后一个效果
跨窗口调用函数
定时刷新
下拉列表框打开指定网站
生成在两个边界间的随机数
文本输入框与标签自动更换
密码输入框与标签自动更换
文本输入区域与标签自动更换
Pre标签在IE与Firefox下效果相对理想的换行处理
固定表头，滚动表格内容
