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<html>
<head>
<meta charset="utf-8">
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<meta name="viewport" content="initial-scale=1.0, maximum-scale=2.0">
<title>DataTables example - Footer callback</title>
<link rel="stylesheet" type="text/css" href="../../media/css/jquery.dataTables.css">
<link rel="stylesheet" type="text/css" href="../resources/syntax/shCore.css">
<link rel="stylesheet" type="text/css" href="../resources/demo.css">
<style type="text/css" class="init">
th { white-space: nowrap; }
</style>
<script type="text/javascript" language="javascript" src="../../media/js/jquery.js"></script>
<script type="text/javascript" language="javascript" src="../../media/js/jquery.dataTables.js"></script>
<script type="text/javascript" language="javascript" src="../resources/syntax/shCore.js"></script>
<script type="text/javascript" language="javascript" src="../resources/demo.js"></script>
<script type="text/javascript" language="javascript" class="init">
$(document).ready(function() {
$('#example').dataTable( {
"footerCallback": function ( row, data, start, end, display ) {
var api = this.api();
// Remove the formatting to get integer data for summation
var intVal = function ( i ) {
return typeof i === 'string' ?
i.replace(/[\$,]/g, '')*1 :
typeof i === 'number' ?
i : 0;
};
// Total over all pages
var total = api
.column( 4 )
.data()
.reduce( function (a, b) {
return intVal(a) + intVal(b);
} );
// Total over this page
var pageTotal = api
.column( 4, { page: 'current'} )
.data()
.reduce( function (a, b) {
return intVal(a) + intVal(b);
} );
// Update footer
$( api.column( 4 ).footer() ).html(
'$'+pageTotal +' ( $'+ total +' total)'
);
}
} );
} );
</script>
</head>
<body class="dt-example">
<div class="container">
<section>
<h1>DataTables example <span>Footer callback</span></h1>
<div class="info">
<p>Through the use of the header and footer callback manipulation functions provided by DataTables
(<a href="//datatables.net/reference/option/headerCallback"><code class="option" title=
"DataTables initialisation option">headerCallback<span>DT</span></code></a> and <a href=
"//datatables.net/reference/option/footerCallback"><code class="option" title=
"DataTables initialisation option">footerCallback<span>DT</span></code></a>), it is possible to perform
some powerful and useful data manipulation functions, such as summarising data in the table.</p>
<p>The example below shows a footer callback being used to total the data for a column (both the
visible and the hidden data) using the <a href=
"//datatables.net/reference/api/column().data()"><code class="api" title=
"DataTables API method">column().data()<span>DT</span></code></a> API method and <a href=
"//datatables.net/reference/api/column().footer()"><code class="api" title=
"DataTables API method">column().footer()<span>DT</span></code></a> for writing the value into the
footer.</p>
</div>
<table id="example" class="display" cellspacing="0" width="100%">
<thead>
<tr>
<th>First name</th>
<th>Last name</th>
<th>Position</th>
<th>Office</th>
<th>Salary</th>
</tr>
</thead>
<tfoot>
<tr>
<th colspan="4" style="text-align:right">Total:</th>
<th></th>
</tr>
</tfoot>
<tbody>
<tr>
<td>Tiger</td>
<td>Nixon</td>
<td>System Architect</td>
<td>Edinburgh</td>
<td>$320,800</td>
</tr>
<tr>
<td>Garrett</td>
<td>Winters</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>$170,750</td>
</tr>
<tr>
<td>Ashton</td>
<td>Cox</td>
<td>Junior Technical Author</td>
<td>San Francisco</td>
<td>$86,000</td>
</tr>
<tr>
<td>Cedric</td>
<td>Kelly</td>
<td>Senior Javascript Developer</td>
<td>Edinburgh</td>
<td>$433,060</td>
</tr>
<tr>
<td>Airi</td>
<td>Satou</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>$162,700</td>
</tr>
<tr>
<td>Brielle</td>
<td>Williamson</td>
<td>Integration Specialist</td>
<td>New York</td>
<td>$372,000</td>
</tr>
<tr>
<td>Herrod</td>
<td>Chandler</td>
<td>Sales Assistant</td>
<td>San Francisco</td>
<td>$137,500</td>
</tr>
<tr>
<td>Rhona</td>
<td>Davidson</td>
<td>Integration Specialist</td>
<td>Tokyo</td>
<td>$327,900</td>
</tr>
<tr>
<td>Colleen</td>
<td>Hurst</td>
<td>Javascript Developer</td>
<td>San Francisco</td>
<td>$205,500</td>
</tr>
<tr>
<td>Sonya</td>
<td>Frost</td>
<td>Software Engineer</td>
<td>Edinburgh</td>
<td>$103,600</td>
</tr>
<tr>
<td>Jena</td>
<td>Gaines</td>
<td>Office Manager</td>
<td>London</td>
<td>$90,560</td>
</tr>
<tr>
<td>Quinn</td>
<td>Flynn</td>
<td>Support Lead</td>
<td>Edinburgh</td>
<td>$342,000</td>
</tr>
<tr>
<td>Charde</td>
<td>Marshall</td>
<td>Regional Director</td>
<td>San Francisco</td>
<td>$470,600</td>
</tr>
<tr>
<td>Haley</td>
<td>Kennedy</td>
<td>Senior Marketing Designer</td>
<td>London</td>
<td>$313,500</td>
</tr>
<tr>
<td>Tatyana</td>
<td>Fitzpatrick</td>
<td>Regional Director</td>
<td>London</td>
<td>$385,750</td>
</tr>
<tr>
<td>Michael</td>
<td>Silva</td>
<td>Marketing Designer</td>
<td>London</td>
<td>$198,500</td>
</tr>
<tr>
<td>Paul</td>
<td>Byrd</td>
<td>Chief Financial Officer (CFO)</td>
<td>New York</td>
<td>$725,000</td>
</tr>
<tr>
<td>Gloria</td>
<td>Little</td>
<td>Systems Administrator</td>
<td>New York</td>
<td>$237,500</td>
</tr>
<tr>
<td>Bradley</td>
<td>Greer</td>
<td>Software Engineer</td>
<td>London</td>
<td>$132,000</td>
</tr>
<tr>
<td>Dai</td>
<td>Rios</td>
<td>Personnel Lead</td>
<td>Edinburgh</td>
<td>$217,500</td>
</tr>
<tr>
<td>Jenette</td>
<td>Caldwell</td>
<td>Development Lead</td>
<td>New York</td>
<td>$345,000</td>
</tr>
<tr>
<td>Yuri</td>
<td>Berry</td>
<td>Chief Marketing Officer (CMO)</td>
<td>New York</td>
<td>$675,000</td>
</tr>
<tr>
<td>Caesar</td>
<td>Vance</td>
<td>Pre-Sales Support</td>
<td>New York</td>
<td>$106,450</td>
</tr>
<tr>
<td>Doris</td>
<td>Wilder</td>
<td>Sales Assistant</td>
<td>Sidney</td>
<td>$85,600</td>
</tr>
<tr>
<td>Angelica</td>
<td>Ramos</td>
<td>Chief Executive Officer (CEO)</td>
<td>London</td>
<td>$1,200,000</td>
</tr>
<tr>
<td>Gavin</td>
<td>Joyce</td>
<td>Developer</td>
<td>Edinburgh</td>
<td>$92,575</td>
</tr>
<tr>
<td>Jennifer</td>
<td>Chang</td>
<td>Regional Director</td>
<td>Singapore</td>
<td>$357,650</td>
</tr>
<tr>
<td>Brenden</td>
<td>Wagner</td>
<td>Software Engineer</td>
<td>San Francisco</td>
<td>$206,850</td>
</tr>
<tr>
<td>Fiona</td>
<td>Green</td>
<td>Chief Operating Officer (COO)</td>
<td>San Francisco</td>
<td>$850,000</td>
</tr>
<tr>
<td>Shou</td>
<td>Itou</td>
<td>Regional Marketing</td>
<td>Tokyo</td>
<td>$163,000</td>
</tr>
<tr>
<td>Michelle</td>
<td>House</td>
<td>Integration Specialist</td>
<td>Sidney</td>
<td>$95,400</td>
</tr>
<tr>
<td>Suki</td>
<td>Burks</td>
<td>Developer</td>
<td>London</td>
<td>$114,500</td>
</tr>
<tr>
<td>Prescott</td>
<td>Bartlett</td>
<td>Technical Author</td>
<td>London</td>
<td>$145,000</td>
</tr>
<tr>
<td>Gavin</td>
<td>Cortez</td>
<td>Team Leader</td>
<td>San Francisco</td>
<td>$235,500</td>
</tr>
<tr>
<td>Martena</td>
<td>Mccray</td>
<td>Post-Sales support</td>
<td>Edinburgh</td>
<td>$324,050</td>
</tr>
<tr>
<td>Unity</td>
<td>Butler</td>
<td>Marketing Designer</td>
<td>San Francisco</td>
<td>$85,675</td>
</tr>
<tr>
<td>Howard</td>
<td>Hatfield</td>
<td>Office Manager</td>
<td>San Francisco</td>
<td>$164,500</td>
</tr>
<tr>
<td>Hope</td>
<td>Fuentes</td>
<td>Secretary</td>
<td>San Francisco</td>
<td>$109,850</td>
</tr>
<tr>
<td>Vivian</td>
<td>Harrell</td>
<td>Financial Controller</td>
<td>San Francisco</td>
<td>$452,500</td>
</tr>
<tr>
<td>Timothy</td>
<td>Mooney</td>
<td>Office Manager</td>
<td>London</td>
<td>$136,200</td>
</tr>
<tr>
<td>Jackson</td>
<td>Bradshaw</td>
<td>Director</td>
<td>New York</td>
<td>$645,750</td>
</tr>
<tr>
<td>Olivia</td>
<td>Liang</td>
<td>Support Engineer</td>
<td>Singapore</td>
<td>$234,500</td>
</tr>
<tr>
<td>Bruno</td>
<td>Nash</td>
<td>Software Engineer</td>
<td>London</td>
<td>$163,500</td>
</tr>
<tr>
<td>Sakura</td>
<td>Yamamoto</td>
<td>Support Engineer</td>
<td>Tokyo</td>
<td>$139,575</td>
</tr>
<tr>
<td>Thor</td>
<td>Walton</td>
<td>Developer</td>
<td>New York</td>
<td>$98,540</td>
</tr>
<tr>
<td>Finn</td>
<td>Camacho</td>
<td>Support Engineer</td>
<td>San Francisco</td>
<td>$87,500</td>
</tr>
<tr>
<td>Serge</td>
<td>Baldwin</td>
<td>Data Coordinator</td>
<td>Singapore</td>
<td>$138,575</td>
</tr>
<tr>
<td>Zenaida</td>
<td>Frank</td>
<td>Software Engineer</td>
<td>New York</td>
<td>$125,250</td>
</tr>
<tr>
<td>Zorita</td>
<td>Serrano</td>
<td>Software Engineer</td>
<td>San Francisco</td>
<td>$115,000</td>
</tr>
<tr>
<td>Jennifer</td>
<td>Acosta</td>
<td>Junior Javascript Developer</td>
<td>Edinburgh</td>
<td>$75,650</td>
</tr>
<tr>
<td>Cara</td>
<td>Stevens</td>
<td>Sales Assistant</td>
<td>New York</td>
<td>$145,600</td>
</tr>
<tr>
<td>Hermione</td>
<td>Butler</td>
<td>Regional Director</td>
<td>London</td>
<td>$356,250</td>
</tr>
<tr>
<td>Lael</td>
<td>Greer</td>
<td>Systems Administrator</td>
<td>London</td>
<td>$103,500</td>
</tr>
<tr>
<td>Jonas</td>
<td>Alexander</td>
<td>Developer</td>
<td>San Francisco</td>
<td>$86,500</td>
</tr>
<tr>
<td>Shad</td>
<td>Decker</td>
<td>Regional Director</td>
<td>Edinburgh</td>
<td>$183,000</td>
</tr>
<tr>
<td>Michael</td>
<td>Bruce</td>
<td>Javascript Developer</td>
<td>Singapore</td>
<td>$183,000</td>
</tr>
<tr>
<td>Donna</td>
<td>Snider</td>
<td>Customer Support</td>
<td>New York</td>
<td>$112,000</td>
</tr>
</tbody>
</table>
<ul class="tabs">
<li class="active">Javascript</li>
<li>HTML</li>
<li>CSS</li>
<li>Ajax</li>
<li>Server-side script</li>
</ul>
<div class="tabs">
<div class="js">
<p>The Javascript shown below is used to initialise the table shown in this
example:</p><code class="multiline brush: js;">$(document).ready(function() {
$('#example').dataTable( {
"footerCallback": function ( row, data, start, end, display ) {
var api = this.api();
// Remove the formatting to get integer data for summation
var intVal = function ( i ) {
return typeof i === 'string' ?
i.replace(/[\$,]/g, '')*1 :
typeof i === 'number' ?
i : 0;
};
// Total over all pages
var total = api
.column( 4 )
.data()
.reduce( function (a, b) {
return intVal(a) + intVal(b);
} );
// Total over this page
var pageTotal = api
.column( 4, { page: 'current'} )
.data()
.reduce( function (a, b) {
return intVal(a) + intVal(b);
} );
// Update footer
$( api.column( 4 ).footer() ).html(
'$'+pageTotal +' ( $'+ total +' total)'
);
}
} );
} );</code>
<p>In addition to the above code, the following Javascript library files are loaded for use in this
example:</p>
<ul>
<li><a href="../../media/js/jquery.js">../../media/js/jquery.js</a></li>
<li><a href="../../media/js/jquery.dataTables.js">../../media/js/jquery.dataTables.js</a></li>
</ul>
</div>
<div class="table">
<p>The HTML shown below is the raw HTML table element, before it has been enhanced by
DataTables:</p>
</div>
<div class="css">
<div>
<p>This example uses a little bit of additional CSS beyond what is loaded from the library
files (below), in order to correctly display the table. The additional CSS used is shown
below:</p><code class="multiline brush: js;">th { white-space: nowrap; }</code>
</div>
<p>The following CSS library files are loaded for use in this example to provide the styling of the
table:</p>
<ul>
<li><a href=
"../../media/css/jquery.dataTables.css">../../media/css/jquery.dataTables.css</a></li>
</ul>
</div>
<div class="ajax">
<p>This table loads data by Ajax. The latest data that has been loaded is shown below. This data
will update automatically as any additional data is loaded.</p>
</div>
<div class="php">
<p>The script used to perform the server-side processing for this table is shown below. Please note
that this is just an example script using PHP. Server-side processing scripts can be written in any
language, using <a href="//datatables.net/manual/server-side">the protocol described in the
DataTables documentation</a>.</p>
</div>
</div>
</section>
</div>
<section>
<div class="footer">
<div class="gradient"></div>
<div class="liner">
<h2>Other examples</h2>
<div class="toc">
<div class="toc-group">
<h3><a href="../basic_init/index.html">Basic initialisation</a></h3>
<ul class="toc">
<li><a href="../basic_init/zero_configuration.html">Zero configuration</a></li>
<li><a href="../basic_init/filter_only.html">Feature enable / disable</a></li>
<li><a href="../basic_init/table_sorting.html">Default ordering (sorting)</a></li>
<li><a href="../basic_init/multi_col_sort.html">Multi-column ordering</a></li>
<li><a href="../basic_init/multiple_tables.html">Multiple tables</a></li>
<li><a href="../basic_init/hidden_columns.html">Hidden columns</a></li>
<li><a href="../basic_init/complex_header.html">Complex headers (rowspan and
colspan)</a></li>
<li><a href="../basic_init/dom.html">DOM positioning</a></li>
<li><a href="../basic_init/flexible_width.html">Flexible table width</a></li>
<li><a href="../basic_init/state_save.html">State saving</a></li>
<li><a href="../basic_init/alt_pagination.html">Alternative pagination</a></li>
<li><a href="../basic_init/scroll_y.html">Scroll - vertical</a></li>
<li><a href="../basic_init/scroll_x.html">Scroll - horizontal</a></li>
<li><a href="../basic_init/scroll_xy.html">Scroll - horizontal and vertical</a></li>
<li><a href="../basic_init/scroll_y_theme.html">Scroll - vertical with jQuery UI
ThemeRoller</a></li>
<li><a href="../basic_init/comma-decimal.html">Language - Comma decimal place</a></li>
<li><a href="../basic_init/language.html">Language options</a></li>
</ul>
</div>
<div class="toc-group">
<h3><a href="./index.html">Advanced initialisation</a></h3>
<ul class="toc active">
<li><a href="./events_live.html">DOM / jQuery events</a></li>
<li><a href="./dt_events.html">DataTables events</a></li>
<li><a href="./column_render.html">Column rendering</a></li>
<li><a href="./length_menu.html">Page length options</a></li>
<li><a href="./dom_multiple_elements.html">Multiple table control elements</a></li>
<li><a href="./complex_header.html">Complex headers (rowspan / colspan)</a></li>
<li><a href="./html5-data-attributes.html">HTML5 data-* attributes</a></li>
<li><a href="./language_file.html">Language file</a></li>
<li><a href="./defaults.html">Setting defaults</a></li>
<li><a href="./row_callback.html">Row created callback</a></li>
<li><a href="./row_grouping.html">Row grouping</a></li>
<li class="active"><a href="./footer_callback.html">Footer callback</a></li>
<li><a href="./dom_toolbar.html">Custom toolbar elements</a></li>
<li><a href="./sort_direction_control.html">Order direction sequence control</a></li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../styling/index.html">Styling</a></h3>
<ul class="toc">
<li><a href="../styling/display.html">Base style</a></li>
<li><a href="../styling/no-classes.html">Base style - no styling classes</a></li>
<li><a href="../styling/row-border.html">Base style - row borders</a></li>
<li><a href="../styling/cell-border.html">Base style - cell borders</a></li>
<li><a href="../styling/hover.html">Base style - hover</a></li>
<li><a href="../styling/order-column.html">Base style - order-column</a></li>
<li><a href="../styling/stripe.html">Base style - stripe</a></li>
<li><a href="../styling/jqueryUI.html">jQuery UI ThemeRoller</a></li>
<li><a href="../styling/bootstrap.html">Bootstrap</a></li>
<li><a href="../styling/foundation.html">Foundation</a></li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../data_sources/index.html">Data sources</a></h3>
<ul class="toc">
<li><a href="../data_sources/dom.html">HTML (DOM) sourced data</a></li>
<li><a href="../data_sources/ajax.html">Ajax sourced data</a></li>
<li><a href="../data_sources/js_array.html">Javascript sourced data</a></li>
<li><a href="../data_sources/server_side.html">Server-side processing</a></li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../api/index.html">API</a></h3>
<ul class="toc">
<li><a href="../api/add_row.html">Add rows</a></li>
<li><a href="../api/multi_filter.html">Individual column filtering (text inputs)</a></li>
<li><a href="../api/multi_filter_select.html">Individual column filtering (select
inputs)</a></li>
<li><a href="../api/highlight.html">Highlighting rows and columns</a></li>
<li><a href="../api/row_details.html">Child rows (show extra / detailed
information)</a></li>
<li><a href="../api/select_row.html">Row selection (multiple rows)</a></li>
<li><a href="../api/select_single_row.html">Row selection and deletion (single
row)</a></li>
<li><a href="../api/form.html">Form inputs</a></li>
<li><a href="../api/counter_columns.html">Index column</a></li>
<li><a href="../api/show_hide.html">Show / hide columns dynamically</a></li>
<li><a href="../api/api_in_init.html">Using API in callbacks</a></li>
<li><a href="../api/tabs_and_scrolling.html">Scrolling and jQuery UI tabs</a></li>
<li><a href="../api/regex.html">Filtering API (regular expressions)</a></li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../ajax/index.html">Ajax</a></h3>
<ul class="toc">
<li><a href="../ajax/simple.html">Ajax data source (arrays)</a></li>
<li><a href="../ajax/objects.html">Ajax data source (objects)</a></li>
<li><a href="../ajax/deep.html">Nested object data (objects)</a></li>
<li><a href="../ajax/objects_subarrays.html">Nested object data (arrays)</a></li>
<li><a href="../ajax/orthogonal-data.html">Orthogonal data</a></li>
<li><a href="../ajax/null_data_source.html">Generated content for a column</a></li>
<li><a href="../ajax/custom_data_property.html">Custom data source property</a></li>
<li><a href="../ajax/custom_data_flat.html">Flat array data source</a></li>
<li><a href="../ajax/defer_render.html">Deferred rendering for speed</a></li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../server_side/index.html">Server-side</a></h3>
<ul class="toc">
<li><a href="../server_side/simple.html">Server-side processing</a></li>
<li><a href="../server_side/custom_vars.html">Custom HTTP variables</a></li>
<li><a href="../server_side/post.html">POST data</a></li>
<li><a href="../server_side/ids.html">Automatic addition of row ID attributes</a></li>
<li><a href="../server_side/object_data.html">Object data source</a></li>
<li><a href="../server_side/row_details.html">Row details</a></li>
<li><a href="../server_side/select_rows.html">Row selection</a></li>
<li><a href="../server_side/jsonp.html">JSONP data source for remote domains</a></li>
<li><a href="../server_side/defer_loading.html">Deferred loading of data</a></li>
<li><a href="../server_side/pipeline.html">Pipelining data to reduce Ajax calls for
paging</a></li>
</ul>
</div>
<div class="toc-group">
<h3><a href="../plug-ins/index.html">Plug-ins</a></h3>
<ul class="toc">
<li><a href="../plug-ins/api.html">API plug-in methods</a></li>
<li><a href="../plug-ins/sorting_auto.html">Ordering plug-ins (with type
detection)</a></li>
<li><a href="../plug-ins/sorting_manual.html">Ordering plug-ins (no type
detection)</a></li>
<li><a href="../plug-ins/range_filtering.html">Custom filtering - range search</a></li>
<li><a href="../plug-ins/dom_sort.html">Live DOM ordering</a></li>
</ul>
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<div class="epilogue">
<p>Please refer to the <a href="http://www.datatables.net">DataTables documentation</a> for full
information about its API properties and methods.<br>
Additionally, there are a wide range of <a href="http://www.datatables.net/extras">extras</a> and
<a href="http://www.datatables.net/plug-ins">plug-ins</a> which extend the capabilities of
DataTables.</p>
<p class="copyright">DataTables designed and created by <a href=
"http://www.sprymedia.co.uk">SpryMedia Ltd</a> © 2007-2014<br>
DataTables is licensed under the <a href="http://www.datatables.net/mit">MIT license</a>.</p>
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