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<!doctype html>
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< html >
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< head >
< meta charset = "utf-8" >
< link rel = "shortcut icon" type = "image/ico" href = "http://www.datatables.net/favicon.ico" / >
< meta name = "viewport" content = "initial-scale=1.0, maximum-scale=2.0" / >
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< 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" >
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th { white-space: nowrap; }
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< / style >
< script type = "text/javascript" language = "javascript" src = "//code.jquery.com/jquery-1.11.3.min.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" >
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$(document).ready(function() {
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$('#example').DataTable( {
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"footerCallback": function ( row, data, start, end, display ) {
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var api = this.api(), data;
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// Remove the formatting to get integer data for summation
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var intVal = function ( i ) {
return typeof i === 'string' ?
i.replace(/[\$,]/g, '')*1 :
typeof i === 'number' ?
i : 0;
};
// Total over all pages
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total = api
.column( 4 )
.data()
.reduce( function (a, b) {
return intVal(a) + intVal(b);
} );
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// Total over this page
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pageTotal = api
.column( 4, { page: 'current'} )
.data()
.reduce( function (a, b) {
return intVal(a) + intVal(b);
}, 0 );
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// Update footer
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$( api.column( 4 ).footer() ).html(
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'$'+pageTotal +' ( $'+ total +' total)'
);
}
} );
} );
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< / 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< / code > < / a > and < a href = "//datatables.net/reference/option/footerCallback" > < code class = "option" title = "DataTables initialisation option" > footerCallback< / code > < / a > ), it is possible to perform some powerful and useful data manipulation functions, such as summarising data in the table.< / p >
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< 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()< / code > < / a > API method and < a href = "//datatables.net/reference/api/column().footer()" > < code class = "api" title = "DataTables API method" > column().footer()< / code > < / a > for writing the value into the footer.< / p >
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< / div >
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< 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 > <
< 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 language-js" > $(document).ready(function() {
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$('#example').DataTable( {
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" footerCallback" : function ( row, data, start, end, display ) {
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var api = this.api(), data;
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// Remove the formatting to get integer data for summation
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var intVal = function ( i ) {
return typeof i === 'string' ?
i.replace(/[\$,]/g, '')*1 :
typeof i === 'number' ?
i : 0;
};
// Total over all pages
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total = api
.column( 4 )
.data()
.reduce( function (a, b) {
return intVal(a) + intVal(b);
} );
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// Total over this page
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pageTotal = api
.column( 4, { page: 'current'} )
.data()
.reduce( function (a, b) {
return intVal(a) + intVal(b);
}, 0 );
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// Update footer
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$( api.column( 4 ).footer() ).html(
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'$'+pageTotal +' ( $'+ total +' total)'
);
}
} );
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} );< / code >
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< p > In addition to the above code, the following Javascript library files are loaded for use in this example:< / p >
< ul > < li > < a href = "//code.jquery.com/jquery-1.11.3.min.js" > //code.jquery.com/jquery-1.11.3.min.js< / a > < / li > < li > < a href = "../../media/js/jquery.dataTables.js" > ../../media/js/jquery.dataTables.js< / a > < / li > < / ul >
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< / div >
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< div class = "table" >
< p > The HTML shown below is the raw HTML table element, before it has been enhanced by DataTables:< / p >
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< / div >
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< 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 language-css" > 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 >
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< / div >
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< 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 >
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< / div >
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< 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 >
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< / div >
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< / div >
< / section >
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< / div >
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< 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_y_dynamic.html
">Scroll - vertical, dynamic height< / 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/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 with column visibility< / a > < / li > < li > < a href = "./object_dom_read.html
">Read HTML to data objects< / a > < / li > < li > < a href = "./html5-data-attributes.html
">HTML5 data-* attributes - cell data< / a > < / li > < li > < a href = "./html5-data-options.html
">HTML5 data-* attributes - table options< / 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/cell-border.html
">Base style - cell borders< / a > < / li > < li > < a href = "../styling/compact.html
">Base style - compact< / 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/row-border.html
">Base style - row borders< / a > < / li > < li > < a href = "../styling/stripe.html
">Base style - stripe< / a > < / li > < li > < a href = "../styling/bootstrap.html
">Bootstrap< / a > < / li > < li > < a href = "../styling/foundation.html
">Foundation< / a > < / li > < li > < a href = "../styling/jqueryUI.html
">jQuery UI ThemeRoller< / 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 searching (text inputs)< / a > < / li > < li > < a href = "../api/multi_filter_select.html
">Individual column searching (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 Bootstrap tabs< / a > < / li > < li > < a href = "../api/regex.html
">Search 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 > < / div >
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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/extensions" > extensions< / 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 > © 2007-2015< br >
DataTables is licensed under the < a href = "http://www.datatables.net/mit" > MIT license< / a > .
< / p >
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< / div >
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