jquery uses oop mode class class usage example

jquery uses oop mode class class usage example_jquery

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Release： 2016-05-16 15:18:41

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The example in this article describes how to use the oop mode class class in jquery. Share it with everyone for your reference, the details are as follows:

I find it very convenient to use classes here to manage various functions of jquery, and the code is also very readable. In the past, I liked to create a file, write a function, and then include the file, but later it became more troublesome to find a function. It is not as convenient to use classes to manage functions. No more words to say.

1. oop.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html dir="ltr" xml:lang="zh-CN" xmlns="http://www.w3.org/1999/xhtml" lang="utf-8"><head>
 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
 <title>ooptest</title>
 <script type="text/javascript" src="jquery.min.js"></script>
 <script type="text/javascript" src="oop.js"></script>
 </head>
 <body>
 <br><br>
 <center>
 访问<a href="http://www.jb51.net">脚本之家</a>
 </center>
 <br><br>
 <div>
 名字： <input name="Name" id="Name" type="text" value="请输入中文名字" notice="请输入中文名字" >
 </div>
 <div></div>
 区域选择： <select name="RegionId" id="RegionId" >
 <option value="0" selected="selected">行政区选择</option>
 <option value="12">浦东新区</option>
 <option value="42">松江区</option>
 <option value="41">金山区</option>
 <option value="40">崇明区</option>
 <option value="39">青浦区</option>
 <option value="37">静安区</option>
 <option value="36">徐汇区</option>
 <option value="35">长宁区</option>
 <option value="34">虹口区</option>
 <option value="33">闸北区</option>
 <option value="32">宝山区</option>
 <option value="31">嘉定区</option>
 <option value="30">闵行区</option>
 <option value="29">普陀区</option>
 <option value="28">卢湾区</option>
 <option value="27">黄浦区</option>
 <option value="26">杨浦区</option>
 <option value="43">奉贤区</option>
 </select>
 </body>
 <html>
 <script type="text/javascript">
 $(document).ready(function(){
 //实例化一个jquery的CLASS
 new oop().init();
 });
 </script>

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2. Build an oop.js

function oop(){
  //定义变量
  var aaa = this;
  //初始化
  this.init = function(){
    aaa.addnotice();
    aaa.unchange();
    return aaa;
  }
  //添加function
  this.addnotice = function(){
    $("input[type='text']").each(function(){
      $(this)
      .focus(function(){
        if($(this).val() == $(this).attr('notice')){
          $(this).val("");
        }
      })
      .blur(function(){
        if($(this).val() == $(this).attr('notice') || $.trim($(this).val()) == ""){
          $(this).val($(this).attr('notice'));
        }
      });
    });
  }
  //添加function
  this.cleannotice = function(){
    $("input[type='text']").each(function(){
      if($(this).val() == $(this).attr('notice')){
        $(this).val("");
      }
    });
  }
  //添加function
  this.unchange = function(){
    $(".select").bind('change',function(){
      if($(this).val() == '0'){
        alert('noselect');
      }else{
        alert($(this).val());
      }
    });
  }
}

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If you are interested, try it yourself

I hope this article will be helpful to everyone in jQuery programming.