Why localStorage event monitoring has no effect_html/css

Why localStorage event monitoring has no effect_html/css_WEB-ITnose

WBOY

Release： 2016-06-24 12:11:13

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I open two pages and after changing the data, why don’t they enter the monitoring and processing events? Please give me some advice. (FireFox 10.0 test)
The code is as follows:

<!DOCTYPE html><html>	<head>		<meta charset = "utf-8" />		<title>LocalStorage </title>		<script type="text/javascript" src="jquery-1.7.1.min.js"></script>		<script type="text/javascript">		   var db = window.localStorage;           if(db)            {              if(window.addEventListener)              {                   window.addEventListener("db",displayStorageEvent);                  console.log('设置监听');              }           }           function displayStorageEvent(e)           {               console.log('进入事件处理');               console.log('改变的字段是'+e.key);               console.log('旧的值是'+e.oldValue);               console.log('新的值是'+e.newValue);                      }           function setdata()           {               if(db)                {                   db.setItem('author', $("#author").val());               }           }                      function showStorage()           {               var s ='';               for(var i=0;i<db.length;i++)               {                   s = s + db.key(i)+ " : " + db.getItem(db.key(i)) + "<br>"                                  }               $("#data")[0].innerHTML = s;           }		</script>	</head>	<body>	    <input type="button" value="显示存储数据" onclick="showStorage()"/>		<form id ="info">		     <label for="author">作者：</label>             <input type="text" name="author" id="author" />             <br/>		     <input type="button" value="设置LocalStorage" onclick="setdata()"/>	    </form>	    <P id="data"></P>	</body>	</html>

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Reply to discussion (solution)

This event has never been used

Fainted, did it myself.

window.addEventListener("db",displayStorageEvent); The parameter is not "db"
but
window.addEventListener("storage",displayStorageEvent);
I understood it wrong.

Hey, I am using IE8