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jQuery implements new message flash prompt in web page title_jquery

WBOY
WBOYOriginal
2016-05-16 15:53:301159browse

Some webmasters may notice this effect. When we browse some SNS social networking and community forums, we often see the title prompts of new messages received flashing. So can we apply this effect to As for your own website, how can you achieve the effect of flashing new messages in the page title? The editor was fortunate enough to see such code on a certain awesome technology blog, based on the jquery framework. 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 
<html> 
<head> 
<base href="<%=basePath%>"> 
<title>My JSP 'test.jsp' starting page</title> 
</head> 
<body> 
<p style="text-align: center;"> 
请看网页标题处效果！ 
<br /> 
隔10秒后提示消失 
</p> 
<script type="text/javascript"
src="script/jquery-2.0.3.js"> 
</script> 
<script type="text/javascript"> 
 
(function($) { 
$.extend( { 
/** 
* 调用方法： var timerArr = $.blinkTitle.show(); 
* $.blinkTitle.clear(timerArr); 
*/
blinkTitle : { 
show : function() { //有新消息时在title处闪烁提示 
var step = 0, _title = document.title; 
var timer = setInterval(function() { 
step++; 
if (step == 3) { 
step = 1 
} 
 
if (step == 1) { 
document.title = '【　　　】' + _title 
} 
 
if (step == 2) { 
document.title = '【新消息】' + _title 
} 
 
}, 500); 
return [ timer, _title ]; 
}, 
/** 
* @param timerArr[0], timer标记 
* @param timerArr[1], 初始的title文本内容 
*/
clear : function(timerArr) { //去除闪烁提示，恢复初始title文本 
if (timerArr) { 
clearInterval(timerArr[0]); 
document.title = timerArr[1]; 
} 
 
} 
} 
}); 
})(jQuery); 
jQuery(function($) { 
var timerArr = $.blinkTitle.show(); 
setTimeout(function() { //此处是过一定时间后自动消失 
$.blinkTitle.clear(timerArr); 
}, 10000); 
//若认为操作消失，只需如此调用： $.blinkTitle.clear(timerArr); 
}); 
</script> 
<br /> 
</body> 
</html>

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