天池像两个鸡蛋融合在一起,上面大雾迷蒙,更添加了几分神秘的色彩。而且天池在长白山的最高点,所以海拔很高,就像耸入云端似的,都是大雾,所以被称为天池。旁边还有火山,火山的顶上灰蒙蒙的,全都被火山灰覆盖了。那里还有很多火山石,有的像狮子,有的像大象,有的像绵羊……数也数不清。
本文实例讲述了jQuery实现html双向绑定功能。分享给大家供大家参考,具体如下:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="jquery-1.9.1.js"></script>
<script>
var user = new User('123');
$(function(){
user.set( "name", "99" );
});
function GetData() {
alert(user.attributes.name);
}
function DataBinder( object_id ) {
var pubSub = jQuery({});
var data_attr = "bind-" + object_id,
message = object_id + ":change";
jQuery( document ).on( "change", "[data-" + data_attr + "]", function( evt ) {
var $input = jQuery( this );
pubSub.trigger( message, [ $input.data( data_attr ), $input.val() ] );
});
pubSub.on( message, function( evt, prop_name, new_val ) {
jQuery( "[data-" + data_attr + "=" + prop_name + "]" ).each( function() {
var $bound = jQuery( this );
if ( $bound.is("input, textarea, select") ) {
$bound.val( new_val );
} else {
$bound.html( new_val );
}
});
});
return pubSub;
}
function User( uid ) {
var binder = new DataBinder( uid ),
user = {
attributes: {},
set: function( attr_name, val ) {
this.attributes[ attr_name ] = val;
binder.trigger( uid + ":change", [ attr_name, val, this ] );
},
get: function( attr_name ) {
return this.attributes[ attr_name ];
},
_binder: binder
};
binder.on( uid + ":change", function( evt, attr_name, new_val, initiator ) {
if ( initiator !== user ) {
user.set( attr_name, new_val );
}
});
return user;
}
</script>
</head>
<body>
<input type="text" data-bind-123="name" /><br/>
<input type="button" onclick="GetData();" value="获取数据"></div>
</body>
</html>
希望本文所述对大家jQuery程序设计有所帮助。
本文jQuery实现html双向绑定功能示例到此结束。和春天在一起,脸上就常带微笑。小编再次感谢大家对我们的支持!