This article mainly introduces jquery to implement textarea input frame limit word count method, through KeyUp event real-time read textarea input box words to achieve this function, very practical value, the need for friends can refer to the
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This article illustrates how jquery implements the TextArea input box to limit the number of words. Share to everyone for your reference. The specific analysis is as follows:
The use of property disabled on the Internet to achieve, this is not good, want to modify have not changed. Of course, this is not perfect.
The code is as follows: <title> jquery Perfect implementation textarea input box limit words </title>
<meta http-equiv= "Content-type" content= "Text/html;charset=utf-8"/>
<script type= "Text/javascript" src= "Jquery-1.8.2.min.js" ></script>
<script type= "Text/javascript" >
$ (function () {
$ ("#weibo"). KeyUp (function () {
var len = $ (this). Val (). length;
if (Len > 139) {
$ (this). Val ($ (this). Val (). substring (0,140));
}
var num = 140-len;
$ ("#word"). Text (num);
});
});
</script>
<style type= "Text/css" >
H6{color:blue;}
Textarea{resize:none;}
#word {color:red;}
</style>
<body>
<textarea name= "Con" id= "Weibo" cols= "" rows= "6" ></textarea>
</body>
I hope this article will help you with your jquery programming.