繁體中文当前位置: 首页 > 图文教程 > 网络编程 > Javascript > javascript获取div的内容 精华篇
- Javascript
- Jquery实战_读书笔记2 选择器
- JQuery 确定css方框模型（盒模型Box Model）
- jQuery 入门级学习笔记及源码
- 被jQuery折腾得半死，揭秘为何jQuery为何在IE/Firefox下均无法使用
- JQuery 构建客户/服务分离的链接模型中Table分页代码效率初探
- JQuery 构建客户/服务分离的链接模型中Table中的排序分析
- JQuery.uploadify 上传文件插件的使用详解 for ASP.NET
- JavaScript 学习笔记（十四） 正则表达式
- JQuery 操作Javascript对象和数组的工具函数小结
- 用JS写的一个TableView控件代码
- JQuery 1.4 中的Ajax问题
- window.onbeforeunload方法在IE下无法正常工作的解决办法
- 优化javascript的执行速度
- jQuery 1.4 15个你应该知道的新特性(译)
- js 模拟实现类似c#下的hashtable的简单功能代码
- setTimeout与setInterval在不同浏览器下的差异
- php gethostbyname获取域名ip地址函数详解
- JavaScript 未结束的字符串常量常见解决方法
- document.getElementById为空或不是对象的解决方法
- javascript中利用数组实现的循环队列代码
Javascript 中的 javascript获取div的内容 精华篇
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-10-12 浏览: 361 ::
收藏到网摘: n/a
用js获取div的内容的方法，其实原理就是利用innerText或innerHTML 原理:采用innerText 或者 innerHTML
复制代码 代码如下:
<script language=”javascript”>
var stock_code = stockcode.innerText;
var stock_code = stockcode.innerHTML;
</script>
<div id="stockcode" style="display:none">
test
</div>
innerText 跟 innerHTML是两个非DOM标准的方法
其区别如图所示：
（图中应该为innerText）
在IE中 innerText 跟 inner HTML 两个方法都能正常运行
但是FF里面的innerText不可用，但是有一个替代方法: textContent
IE: oDiv.innerText = aString; oDiv.innerHTML = aString;
FF: oDiv.textContent = aString; oDiv.innerHTML = aString;
Ajax in action 的作者之一Eric 用正则表达式 实现了 一个兼容方法，比较有趣
Hope this helps
A little smirk
One day a secretary is leaving on her lunch break, and she notices her boss standing in front of a shredder with a clueless look on his face. The secretary walks up to him and asks if he needs help.
"Yes!" he says looking and sounding relieved, "This is very important."
Glad to help, she turns the shredder on and inserts the paper. Then her boss says, "Thanks, I only need one copy."
Create function like innerText
As you may have figured out innerText is IE only. That means that browsers like Mozilla, Firefox, and Netscape will return undefined. If you do not know what innerText does, it strips out all of the tags so you only see the text.
For example, if a div contains the HTML <span id='span1'>Eric</span>, innerHTML would return <span id='span1'>Eric</span> while innerText will return Eric.
Now to make innerHTML act the same we need to use some regular expressions with the strings replace() method.
Now the basic pattern we need to match is or or or
Now the regular expression we need to use is /<\/?[^>]+>/gi
If you do not know regular expressions here is a quick explanation:
/ - Starts the regular expression
< - Match the less than sign
\/ - Escape the character / so it can be matched (Without the \ you would be saying it is the end of the reg exp.)
? - Match the / character 0 or 1 times
[^>] - Match any character but greater than sign
+ - Match [^>] one or more times
> - Match greater than sign
/ - End the regular expression
gi - Tells regular expression to match global and ignore the case
So now the function to replace the text would look like:
复制代码 代码如下:
<script type="text/javascript">
var regExp = /<\/?[^>]+>/gi;
function ReplaceTags(xStr){
xStr = xStr.replace(regExp,"");
return xStr;
}
</script>
All you need to do is pass it a string and it returns the string stripped of the tags.
An example is shown below to grab the text from a div without the tags.
点击运行可以看到效果:
[Ctrl+A 全选 提示:你可先修改部分代码,再按运行]
[Ctrl+A 全选 提示:你可先修改部分代码,再按运行]
评论 (0) All
