Question

如何点击此课程ui-icon-close？

我有以下HMTL

<ul id="tabs" class="nav nav-tabs" >
   <li class="active">
       <a href="#List" data-toggle="tab">My List 
           <span  class='ui-icon ui-icon-close'></span> 
       </a>           
   </li>
</ul>

以下Jquery / Javascript

$('#tabs a').delegate( "#.ui-icon-close", "click", function(){
    console.log('tabs');
 });

Answer 1

<强> Working fiddle

# #.ui-icon-close中的额外".ui-icon-close"应为$('#tabs a').delegate( ".ui-icon-close", "click", function(){ console.log('tabs'); });：

on()

从jQuery 1.7开始，.delegate（）已被.on（）方法取代。

因此，您应该使用delegate()代替click并反转事件.ui-icon-close和选择器$('#tabs a').on( "click", ".ui-icon-close", function(){ console.log('tabs'); });的位置：

var mongo = require('mongodb').MongoClient;
var DB = null;
var dbURL = 'mongodb://localhost:27017';
exports.connect = function(cb) {

    console.log('meep'); //tracing code

    mongo.connect(dbURL, function(err, db){
        console.log('lmao'); //tracing
        if (err) throw Error('Something has went wrong');
        else { DB=db; console.log(DB); cb();}

    });
    console.log(DB); //returns null
};
//if some other file requires this file as mydbjs for example,
//I want to be able to do mydbjs.db().collection('epik').find(); 
exports.db = function() {
    if (DB === null) throw Error('DB Object has not yet been initialized');
    return DB;
};

希望这有帮助。

选项卡代表不起作用

1 个答案: