Unable to get HTML DOM element using jQuery
Question
I am trying to get the text of one of the elements and show it up on an alert but its not working for me. The element in question is <h5 class="title"> . Here is my html code:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.css">
<link rel="stylesheet" href="styling.css">
<script src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.2/jquery.mobile-1.4.2.min.js"></script>
<title>Example</title>
</head>
<body>
<div data-iconpos="none" data-role="collapsibleset" data-theme="a" data-content-theme="a">
<div data-role="collapsible" data-collapsed="false">
<h2><img src="today_calendar.png" style="height: 60px; vertical-align:middle;"> Today's Events</h2>
<div id="todayCollapsible">
<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>
</div>
</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>
3 answers
solution1
3 ACCPTED 2014-07-19 16:46:26
Your issue is that since you are using jQuery mobile, it is restructuring the DOM and wrapping an extra <dv> around your <ul>
Thus the closest('div') is different than the one in your source.
Try This:
Add data-title to your h5
<h5 class="title" data-title="Event Title Two">Event Title Two</h5>
And change JS to:
$("body").on('click','button',function(){
var title = $(this).closest("div").siblings('h5.title').data("title");
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);
});
solution2
2 2014-07-19 16:46:47
Apparently, jQuery mobile will wrap some elements with a div, in this case, the <ul data-role="list-view"> . Therefore, running .closest('div') will refer to the generated div, instead of the one that contains the h5 .
To fix this, add your own class to the div.
<div id="event1" class="event-wrapper" data-role="collapsible" data-collapsed="true">
<!-- ^ Here -->
Then, use your class to refer to it.
jQuery mobile adds a further complication: it adds extra text that will be read by the .text() function. We need to store the text we need first before jQuery mobile adds text to the page.
$(document).one('pagebeforecreate', function(){
$('h5').each(function(){this.dataset.text = this.innerHTML;});
});
Then, we need to read the text we need from a data attribute instead of using .text() .
var title = $(this).closest(".event-wrapper").find(".title").data('text');
var date = $(this).closest(".event-wrapper").find("table .date").text();
solution3
-1 2014-07-19 16:30:50
I've updated my answer. your code works fine. my bad. hehehe.
$("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);
}
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