遍历jQuery中的HTML DOM元素 [英] traversing through HTML DOM elements in jQuery
问题描述
这段html由ajax调用加载。有很多这样的html集。这只是一套:
print'< div id ='。$ row ['Event ID']。' data-role =collapsibledata-collapsed =true>';
print'< h5 class =title>'。$ row ['Title']。'< / h5>';
print'< ul data-role =listviewid =today_events>';
print'< li class =event>< a href =#>';
print'< table>< tr>< td>日期< / td>';
print'< td class =datestyle =padding:10px;>'。$ row ['Date']。'< / td>';
print'< / tr>< tr>';
print'< td>时间< / td>';
print'< td class =timestyle =padding:10px;>'。$ row ['Time_Duration']。'< / td>';
print'< / tr>< tr>';
print'< td> Venue< / td>';
print'< td class =venuestyle =padding:10px;>'。$ row ['Venue']。'< / td>';
print'< / tr>< / table>< / a>< / li>';
print'< li style =background-color:#CADECC;>';
print'< button class =ui-btn ui-shadow ui-corner-all ui-btn-icon-left ui-icon-calendarstyle =width:170px; float:right; position:relative: ;>添加到日历< / button>';
print'< / li>< / ul>';
print'< / div>';
我试图在按钮被点击时发出警报。警报应包含特定 $ row
数据的标题和日期。
这是我的jQuery代码但是它不起作用,我看到了一个空白的提示):
$ $ $(body)。on('click','按钮',函数(){
var title = $(this).closest(div)。find(。title)。text();
var date = $(this)。最近(table)。find(。date).text();
// var time = $(this).parents()。find(.time).text();
// var venue = $(this).parents()。find(。venue)。text();
alert(title + date);
}) ;
获得标题的行很好。获取日期的行正在寻找一个表的按钮的祖先元素,但该表中的按钮不在中,它只是在表中的div中。所以:
var date = $(this).closest(div)。find(table .date)。text();
<!DOCTYPE html>
< html>
< head>
< script src =// code.jquery.com/jquery-1.11.0.min.js\"> ;</script>
< meta charset =utf-8>
< title>示例< / title>
< / head>
< body>
< div id =event1data-role =collapsibledata-collapsed =true>
< h5 class =title>事件标题One< / h5>
< li class =event>< a href =#>
< table>< tr>< td>日期< / td>
< td class =datestyle =padding:10px;> 01/01/2014< / td>
< / tr>< tr>
< td>时间< / td>
< td class =timestyle =padding:10px;> 1小时< / td>
< / tr>< tr>
< td> Venue< / td>
< td class =venuestyle =padding:10px;> One Plaza< / td>
< / tr>< / table>< / a>< / li>
< li style =background-color:#CADECC;>
< button class =ui-btn ui-shadow ui-corner-all ui-btn-icon-left ui-icon-calendarstyle =width:170px; float:right; position:relative; >添加到日历< / button>
< / li>< / ul>
< / div>
< div id =event2data-role =collapsibledata-collapsed =true>
< h5 class =title>事件标题Two< / h5>
< li class =event>< a href =#>
< table>< tr>< td>日期< / td>
< td class =datestyle =padding:10px;> 02/02/2014< / td>
< / tr>< tr>
< td>时间< / td>
< td class =timestyle =padding:10px;> 2小时< / td>
< / tr>< tr>
< td> Venue< / td>
< td class =venuestyle =padding:10px;> Two Plaza< / td>
< / tr>< / table>< / a>< / li>
< li style =background-color:#CADECC;>
< button class =ui-btn ui-shadow ui-corner-all ui-btn-icon-left ui-icon-calendarstyle =width:170px; float:right; position:relative; >添加到日历< / button>
< / li>< / ul>
< / div>
< script> ('click','button',function(){
var title =
(function(){
use strict;
$(body $(this).closest(div)。find(。title).text();
var date = $(this).closest(div)。find(table .date ).text();
// var time = $(this).parents()。find(。time)。text();
// var venue = $(this)。父母()。find(。venue).text();
alert(title + date);
});
})();
< / script>
< / body>
< / html>
This piece of html is loaded by an ajax call. There are plenty of such sets of html. This is only 1 set:
print '<div id="'.$row['Event ID'].'" data-role="collapsible" data-collapsed="true">';
print '<h5 class="title">'.$row['Title'].'</h5>';
print '<ul data-role="listview" id="today_events">';
print '<li class="event"><a href="#">';
print '<table><tr><td>Date</td>';
print '<td class="date" style="padding: 10px;">'.$row['Date'].'</td>';
print '</tr><tr>';
print '<td> Time </td>';
print '<td class="time" style="padding: 10px;">'.$row['Time_Duration'].'</td>';
print '</tr><tr>';
print '<td> Venue </td>';
print '<td class="venue" style="padding: 10px;">'.$row['Venue'].'</td>';
print '</tr></table></a></li>';
print '<li style="background-color: #CADECC;">';
print '<button class="ui-btn ui-shadow ui-corner-all ui-btn-icon-left ui-icon-calendar" style="width: 170px; float: right; position: relative;">Add to calendar</button>';
print '</li></ul>';
print '</div>';
I am trying to give an alert when the button is clicked. The alert should contain the title and date of the specific $row
of data.
This is my jQuery code (BUT its not working. I see a blank alert):
$("body").on('click','button',function(){
var title = $(this).closest("div").find(".title").text();
var date = $(this).closest("table").find(".date").text();
//var time = $(this).parents().find(".time").text();
//var venue = $(this).parents().find(".venue").text();
alert(title+date);
});
Your line getting the title is fine. The line getting the date is looking for an ancestor element of the button that's a table, but the button isn't in the table, it's just in the div that the table's in. So:
var date = $(this).closest("div").find("table .date").text();
<!DOCTYPE html>
<html>
<head>
<script src="//code.jquery.com/jquery-1.11.0.min.js"></script>
<meta charset="utf-8">
<title>Example</title>
</head>
<body>
<div id="event1" data-role="collapsible" data-collapsed="true">
<h5 class="title">Event Title One</h5>
<ul data-role="listview" id="today_events">
<li class="event"><a href="#">
<table><tr><td>Date</td>
<td class="date" style="padding: 10px;">01/01/2014</td>
</tr><tr>
<td> Time </td>
<td class="time" style="padding: 10px;">1 hour</td>
</tr><tr>
<td> Venue </td>
<td class="venue" style="padding: 10px;">One Plaza</td>
</tr></table></a></li>
<li style="background-color: #CADECC;">
<button class="ui-btn ui-shadow ui-corner-all ui-btn-icon-left ui-icon-calendar" style="width: 170px; float: right; position: relative;">Add to calendar</button>
</li></ul>
</div>
<div id="event2" data-role="collapsible" data-collapsed="true">
<h5 class="title">Event Title Two</h5>
<ul data-role="listview" id="today_events">
<li class="event"><a href="#">
<table><tr><td>Date</td>
<td class="date" style="padding: 10px;">02/02/2014</td>
</tr><tr>
<td> Time </td>
<td class="time" style="padding: 10px;">2 hours</td>
</tr><tr>
<td> Venue </td>
<td class="venue" style="padding: 10px;">Two Plaza</td>
</tr></table></a></li>
<li style="background-color: #CADECC;">
<button class="ui-btn ui-shadow ui-corner-all ui-btn-icon-left ui-icon-calendar" style="width: 170px; float: right; position: relative;">Add to calendar</button>
</li></ul>
</div>
<script>
(function() {
"use strict";
$("body").on('click','button',function(){
var title = $(this).closest("div").find(".title").text();
var date = $(this).closest("div").find("table .date").text();
//var time = $(this).parents().find(".time").text();
//var venue = $(this).parents().find(".venue").text();
alert(title+date);
});
})();
</script>
</body>
</html>
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