jQuery继承extend用法详解

网络编程 2025/1/15 佚名

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本文实例为大家jQuery继承extend用法，供大家参考，具体内容如下

js代码

//直接基于jQuery的扩展,判断是否为空 
$.isBlank = function(obj){ 
  return(typeof(obj)=='undefined'||obj==''||obj==null); 
 } 
//直接基于jQuery的扩展，去除html标签，保留内容 
 $.htmlContent = function(tag){ 
  var reTag = /<(""); 
 } 
//直接基于jQuery的扩展(方式二) 
$.xy = { 
sayhello:function(){return "hello";}, 
saybaybay:function(){return "baybay";} 
}; 
//jQuery类级别的扩展 
$.extend({ 
add:function(a,b){return a+b;}, 
diff:function(a,b){return a-b} 
}); 
//jQuery对象级别的扩展 
$.fn.extend({ 
 getvalue:function(){ 
 return this.val(); 
  } 
 });

html代码

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 
<% 
String path = request.getContextPath(); 
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 
%> 
 
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 
<html> 
 <head> 
 <base href="<%=basePath%>"> 
  
 <title>My JSP 'index.jsp' starting page</title> 
 <meta http-equiv="pragma" content="no-cache"> 
 <meta http-equiv="cache-control" content="no-cache"> 
 <meta http-equiv="expires" content="0">  
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 
 <meta http-equiv="description" content="This is my page"> 
 <!-- 
 <link rel="stylesheet" type="text/css" href="styles.css"> 
 --> 
  
 <script type="text/javascript" src="/UploadFiles/2021-04-02/jquery-1.7.js">

输出

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。