Datatables中文网

API插件方法

Datatables API是一个完全可扩展的设计，使用 $.fn.dataTable.Api.register方法可以很容易的添加函数。

这个函数接受两个参数：第一个被添加的方法的名称(jquery的链式层次),第二个是函数本身。

这个例子展示了如何把sum()方法添加到api中，得到一列的总和。 由于链式的写法，可以让 sum()方法作用到任何一个被选中的列，也可以限制到当前页过滤后的数据或者所有页面。 这个是使用 column()API 方法来完成的

Name Position Office Age Start date Salary
Name Position Office Age Start date Salary
Tiger Nixon System Architect Edinburgh 61 2011/04/25 $320,800
Garrett Winters Accountant Tokyo 63 2011/07/25 $170,750
Ashton Cox Junior Technical Author San Francisco 66 2009/01/12 $86,000
Cedric Kelly Senior Javascript Developer Edinburgh 22 2012/03/29 $433,060
Airi Satou Accountant Tokyo 33 2008/11/28 $162,700
Brielle Williamson Integration Specialist New York 61 2012/12/02 $372,000
Herrod Chandler Sales Assistant San Francisco 59 2012/08/06 $137,500
Rhona Davidson Integration Specialist Tokyo 55 2010/10/14 $327,900
Colleen Hurst Javascript Developer San Francisco 39 2009/09/15 $205,500
Sonya Frost Software Engineer Edinburgh 23 2008/12/13 $103,600
Jena Gaines Office Manager London 30 2008/12/19 $90,560
Quinn Flynn Support Lead Edinburgh 22 2013/03/03 $342,000
Charde Marshall Regional Director San Francisco 36 2008/10/16 $470,600
Haley Kennedy Senior Marketing Designer London 43 2012/12/18 $313,500
Tatyana Fitzpatrick Regional Director London 19 2010/03/17 $385,750
Michael Silva Marketing Designer London 66 2012/11/27 $198,500
Paul Byrd Chief Financial Officer (CFO) New York 64 2010/06/09 $725,000
Gloria Little Systems Administrator New York 59 2009/04/10 $237,500
Bradley Greer Software Engineer London 41 2012/10/13 $132,000
Dai Rios Personnel Lead Edinburgh 35 2012/09/26 $217,500
Jenette Caldwell Development Lead New York 30 2011/09/03 $345,000
Yuri Berry Chief Marketing Officer (CMO) New York 40 2009/06/25 $675,000
Caesar Vance Pre-Sales Support New York 21 2011/12/12 $106,450
Doris Wilder Sales Assistant Sidney 23 2010/09/20 $85,600
Angelica Ramos Chief Executive Officer (CEO) London 47 2009/10/09 $1,200,000
Gavin Joyce Developer Edinburgh 42 2010/12/22 $92,575
Jennifer Chang Regional Director Singapore 28 2010/11/14 $357,650
Brenden Wagner Software Engineer San Francisco 28 2011/06/07 $206,850
Fiona Green Chief Operating Officer (COO) San Francisco 48 2010/03/11 $850,000
Shou Itou Regional Marketing Tokyo 20 2011/08/14 $163,000
Michelle House Integration Specialist Sidney 37 2011/06/02 $95,400
Suki Burks Developer London 53 2009/10/22 $114,500
Prescott Bartlett Technical Author London 27 2011/05/07 $145,000
Gavin Cortez Team Leader San Francisco 22 2008/10/26 $235,500
Martena Mccray Post-Sales support Edinburgh 46 2011/03/09 $324,050
Unity Butler Marketing Designer San Francisco 47 2009/12/09 $85,675
Howard Hatfield Office Manager San Francisco 51 2008/12/16 $164,500
Hope Fuentes Secretary San Francisco 41 2010/02/12 $109,850
Vivian Harrell Financial Controller San Francisco 62 2009/02/14 $452,500
Timothy Mooney Office Manager London 37 2008/12/11 $136,200
Jackson Bradshaw Director New York 65 2008/09/26 $645,750
Olivia Liang Support Engineer Singapore 64 2011/02/03 $234,500
Bruno Nash Software Engineer London 38 2011/05/03 $163,500
Sakura Yamamoto Support Engineer Tokyo 37 2009/08/19 $139,575
Thor Walton Developer New York 61 2013/08/11 $98,540
Finn Camacho Support Engineer San Francisco 47 2009/07/07 $87,500
Serge Baldwin Data Coordinator Singapore 64 2012/04/09 $138,575
Zenaida Frank Software Engineer New York 63 2010/01/04 $125,250
Zorita Serrano Software Engineer San Francisco 56 2012/06/01 $115,000
Jennifer Acosta Junior Javascript Developer Edinburgh 43 2013/02/01 $75,650
Cara Stevens Sales Assistant New York 46 2011/12/06 $145,600
Hermione Butler Regional Director London 47 2011/03/21 $356,250
Lael Greer Systems Administrator London 21 2009/02/27 $103,500
Jonas Alexander Developer San Francisco 30 2010/07/14 $86,500
Shad Decker Regional Director Edinburgh 51 2008/11/13 $183,000
Michael Bruce Javascript Developer Singapore 29 2011/06/27 $183,000
Donna Snider Customer Support New York 27 2011/01/25 $112,000 
$.fn.dataTable.Api.register( 'column().data().sum()', function () {
    return this.reduce( function (a, b) {
        var x = parseFloat( a ) || 0;
        var y = parseFloat( b ) || 0;
        return x + y;
    } );
} );

/* Init the table and fire off a call to get the hidden nodes. */
$(document).ready(function() {
    var table = $('#example').DataTable();

    $('<button>点击计算所有行里年龄列的总和</button>')
            .prependTo( '#demo' )
            .on( 'click', function () {
                alert( 'Column sum is: '+ table.column( 3 ).data().sum() );
            } );

    $('<button>点击计算可见行年龄列的总和</button>')
            .prependTo( '#demo' )
            .on( 'click', function () {
                alert( 'Column sum is: '+ table.column( 3, {page:'current'} ).data().sum() );
            } );
} );
<div id="demo">  </div>
				<table id="example" class="display" cellspacing="0" width="100%">
					<thead>
						<tr>
							<th>Name</th>
							<th>Position</th>
							<th>Office</th>
							<th>Age</th>
							<th>Start date</th>
							<th>Salary</th>
						</tr>
					</thead>
					<tfoot>
						<tr>
							<th>Name</th>
							<th>Position</th>
							<th>Office</th>
							<th>Age</th>
							<th>Start date</th>
							<th>Salary</th>
						</tr>
					</tfoot>
					<tbody>
						<tr>
							<td>Tiger Nixon</td>
							<td>System Architect</td>
							<td>Edinburgh</td>
							<td>61</td>
							<td>2011/04/25</td>
							<td>$320,800</td>
						</tr>
						<tr>
							<td>Garrett Winters</td>
							<td>Accountant</td>
							<td>Tokyo</td>
							<td>63</td>
							<td>2011/07/25</td>
							<td>$170,750</td>
						</tr>
						<tr>
							<td>Ashton Cox</td>
							<td>Junior Technical Author</td>
							<td>San Francisco</td>
							<td>66</td>
							<td>2009/01/12</td>
							<td>$86,000</td>
						</tr>
						<tr>
							<td>Cedric Kelly</td>
							<td>Senior Javascript Developer</td>
							<td>Edinburgh</td>
							<td>22</td>
							<td>2012/03/29</td>
							<td>$433,060</td>
						</tr>
						<tr>
							<td>Airi Satou</td>
							<td>Accountant</td>
							<td>Tokyo</td>
							<td>33</td>
							<td>2008/11/28</td>
							<td>$162,700</td>
						</tr>
						<tr>
							<td>Brielle Williamson</td>
							<td>Integration Specialist</td>
							<td>New York</td>
							<td>61</td>
							<td>2012/12/02</td>
							<td>$372,000</td>
						</tr>
						<tr>
							<td>Herrod Chandler</td>
							<td>Sales Assistant</td>
							<td>San Francisco</td>
							<td>59</td>
							<td>2012/08/06</td>
							<td>$137,500</td>
						</tr>
						<tr>
							<td>Rhona Davidson</td>
							<td>Integration Specialist</td>
							<td>Tokyo</td>
							<td>55</td>
							<td>2010/10/14</td>
							<td>$327,900</td>
						</tr>
						<tr>
							<td>Colleen Hurst</td>
							<td>Javascript Developer</td>
							<td>San Francisco</td>
							<td>39</td>
							<td>2009/09/15</td>
							<td>$205,500</td>
						</tr>
						<tr>
							<td>Sonya Frost</td>
							<td>Software Engineer</td>
							<td>Edinburgh</td>
							<td>23</td>
							<td>2008/12/13</td>
							<td>$103,600</td>
						</tr>
						<tr>
							<td>Jena Gaines</td>
							<td>Office Manager</td>
							<td>London</td>
							<td>30</td>
							<td>2008/12/19</td>
							<td>$90,560</td>
						</tr>
						<tr>
							<td>Quinn Flynn</td>
							<td>Support Lead</td>
							<td>Edinburgh</td>
							<td>22</td>
							<td>2013/03/03</td>
							<td>$342,000</td>
						</tr>
						<tr>
							<td>Charde Marshall</td>
							<td>Regional Director</td>
							<td>San Francisco</td>
							<td>36</td>
							<td>2008/10/16</td>
							<td>$470,600</td>
						</tr>
						<tr>
							<td>Haley Kennedy</td>
							<td>Senior Marketing Designer</td>
							<td>London</td>
							<td>43</td>
							<td>2012/12/18</td>
							<td>$313,500</td>
						</tr>
						<tr>
							<td>Tatyana Fitzpatrick</td>
							<td>Regional Director</td>
							<td>London</td>
							<td>19</td>
							<td>2010/03/17</td>
							<td>$385,750</td>
						</tr>
						<tr>
							<td>Michael Silva</td>
							<td>Marketing Designer</td>
							<td>London</td>
							<td>66</td>
							<td>2012/11/27</td>
							<td>$198,500</td>
						</tr>
						<tr>
							<td>Paul Byrd</td>
							<td>Chief Financial Officer (CFO)</td>
							<td>New York</td>
							<td>64</td>
							<td>2010/06/09</td>
							<td>$725,000</td>
						</tr>
						<tr>
							<td>Gloria Little</td>
							<td>Systems Administrator</td>
							<td>New York</td>
							<td>59</td>
							<td>2009/04/10</td>
							<td>$237,500</td>
						</tr>
						<tr>
							<td>Bradley Greer</td>
							<td>Software Engineer</td>
							<td>London</td>
							<td>41</td>
							<td>2012/10/13</td>
							<td>$132,000</td>
						</tr>
						<tr>
							<td>Dai Rios</td>
							<td>Personnel Lead</td>
							<td>Edinburgh</td>
							<td>35</td>
							<td>2012/09/26</td>
							<td>$217,500</td>
						</tr>
						<tr>
							<td>Jenette Caldwell</td>
							<td>Development Lead</td>
							<td>New York</td>
							<td>30</td>
							<td>2011/09/03</td>
							<td>$345,000</td>
						</tr>
						<tr>
							<td>Yuri Berry</td>
							<td>Chief Marketing Officer (CMO)</td>
							<td>New York</td>
							<td>40</td>
							<td>2009/06/25</td>
							<td>$675,000</td>
						</tr>
						<tr>
							<td>Caesar Vance</td>
							<td>Pre-Sales Support</td>
							<td>New York</td>
							<td>21</td>
							<td>2011/12/12</td>
							<td>$106,450</td>
						</tr>
						<tr>
							<td>Doris Wilder</td>
							<td>Sales Assistant</td>
							<td>Sidney</td>
							<td>23</td>
							<td>2010/09/20</td>
							<td>$85,600</td>
						</tr>
						<tr>
							<td>Angelica Ramos</td>
							<td>Chief Executive Officer (CEO)</td>
							<td>London</td>
							<td>47</td>
							<td>2009/10/09</td>
							<td>$1,200,000</td>
						</tr>
						<tr>
							<td>Gavin Joyce</td>
							<td>Developer</td>
							<td>Edinburgh</td>
							<td>42</td>
							<td>2010/12/22</td>
							<td>$92,575</td>
						</tr>
						<tr>
							<td>Jennifer Chang</td>
							<td>Regional Director</td>
							<td>Singapore</td>
							<td>28</td>
							<td>2010/11/14</td>
							<td>$357,650</td>
						</tr>
						<tr>
							<td>Brenden Wagner</td>
							<td>Software Engineer</td>
							<td>San Francisco</td>
							<td>28</td>
							<td>2011/06/07</td>
							<td>$206,850</td>
						</tr>
						<tr>
							<td>Fiona Green</td>
							<td>Chief Operating Officer (COO)</td>
							<td>San Francisco</td>
							<td>48</td>
							<td>2010/03/11</td>
							<td>$850,000</td>
						</tr>
						<tr>
							<td>Shou Itou</td>
							<td>Regional Marketing</td>
							<td>Tokyo</td>
							<td>20</td>
							<td>2011/08/14</td>
							<td>$163,000</td>
						</tr>
						<tr>
							<td>Michelle House</td>
							<td>Integration Specialist</td>
							<td>Sidney</td>
							<td>37</td>
							<td>2011/06/02</td>
							<td>$95,400</td>
						</tr>
						<tr>
							<td>Suki Burks</td>
							<td>Developer</td>
							<td>London</td>
							<td>53</td>
							<td>2009/10/22</td>
							<td>$114,500</td>
						</tr>
						<tr>
							<td>Prescott Bartlett</td>
							<td>Technical Author</td>
							<td>London</td>
							<td>27</td>
							<td>2011/05/07</td>
							<td>$145,000</td>
						</tr>
						<tr>
							<td>Gavin Cortez</td>
							<td>Team Leader</td>
							<td>San Francisco</td>
							<td>22</td>
							<td>2008/10/26</td>
							<td>$235,500</td>
						</tr>
						<tr>
							<td>Martena Mccray</td>
							<td>Post-Sales support</td>
							<td>Edinburgh</td>
							<td>46</td>
							<td>2011/03/09</td>
							<td>$324,050</td>
						</tr>
						<tr>
							<td>Unity Butler</td>
							<td>Marketing Designer</td>
							<td>San Francisco</td>
							<td>47</td>
							<td>2009/12/09</td>
							<td>$85,675</td>
						</tr>
						<tr>
							<td>Howard Hatfield</td>
							<td>Office Manager</td>
							<td>San Francisco</td>
							<td>51</td>
							<td>2008/12/16</td>
							<td>$164,500</td>
						</tr>
						<tr>
							<td>Hope Fuentes</td>
							<td>Secretary</td>
							<td>San Francisco</td>
							<td>41</td>
							<td>2010/02/12</td>
							<td>$109,850</td>
						</tr>
						<tr>
							<td>Vivian Harrell</td>
							<td>Financial Controller</td>
							<td>San Francisco</td>
							<td>62</td>
							<td>2009/02/14</td>
							<td>$452,500</td>
						</tr>
						<tr>
							<td>Timothy Mooney</td>
							<td>Office Manager</td>
							<td>London</td>
							<td>37</td>
							<td>2008/12/11</td>
							<td>$136,200</td>
						</tr>
						<tr>
							<td>Jackson Bradshaw</td>
							<td>Director</td>
							<td>New York</td>
							<td>65</td>
							<td>2008/09/26</td>
							<td>$645,750</td>
						</tr>
						<tr>
							<td>Olivia Liang</td>
							<td>Support Engineer</td>
							<td>Singapore</td>
							<td>64</td>
							<td>2011/02/03</td>
							<td>$234,500</td>
						</tr>
						<tr>
							<td>Bruno Nash</td>
							<td>Software Engineer</td>
							<td>London</td>
							<td>38</td>
							<td>2011/05/03</td>
							<td>$163,500</td>
						</tr>
						<tr>
							<td>Sakura Yamamoto</td>
							<td>Support Engineer</td>
							<td>Tokyo</td>
							<td>37</td>
							<td>2009/08/19</td>
							<td>$139,575</td>
						</tr>
						<tr>
							<td>Thor Walton</td>
							<td>Developer</td>
							<td>New York</td>
							<td>61</td>
							<td>2013/08/11</td>
							<td>$98,540</td>
						</tr>
						<tr>
							<td>Finn Camacho</td>
							<td>Support Engineer</td>
							<td>San Francisco</td>
							<td>47</td>
							<td>2009/07/07</td>
							<td>$87,500</td>
						</tr>
						<tr>
							<td>Serge Baldwin</td>
							<td>Data Coordinator</td>
							<td>Singapore</td>
							<td>64</td>
							<td>2012/04/09</td>
							<td>$138,575</td>
						</tr>
						<tr>
							<td>Zenaida Frank</td>
							<td>Software Engineer</td>
							<td>New York</td>
							<td>63</td>
							<td>2010/01/04</td>
							<td>$125,250</td>
						</tr>
						<tr>
							<td>Zorita Serrano</td>
							<td>Software Engineer</td>
							<td>San Francisco</td>
							<td>56</td>
							<td>2012/06/01</td>
							<td>$115,000</td>
						</tr>
						<tr>
							<td>Jennifer Acosta</td>
							<td>Junior Javascript Developer</td>
							<td>Edinburgh</td>
							<td>43</td>
							<td>2013/02/01</td>
							<td>$75,650</td>
						</tr>
						<tr>
							<td>Cara Stevens</td>
							<td>Sales Assistant</td>
							<td>New York</td>
							<td>46</td>
							<td>2011/12/06</td>
							<td>$145,600</td>
						</tr>
						<tr>
							<td>Hermione Butler</td>
							<td>Regional Director</td>
							<td>London</td>
							<td>47</td>
							<td>2011/03/21</td>
							<td>$356,250</td>
						</tr>
						<tr>
							<td>Lael Greer</td>
							<td>Systems Administrator</td>
							<td>London</td>
							<td>21</td>
							<td>2009/02/27</td>
							<td>$103,500</td>
						</tr>
						<tr>
							<td>Jonas Alexander</td>
							<td>Developer</td>
							<td>San Francisco</td>
							<td>30</td>
							<td>2010/07/14</td>
							<td>$86,500</td>
						</tr>
						<tr>
							<td>Shad Decker</td>
							<td>Regional Director</td>
							<td>Edinburgh</td>
							<td>51</td>
							<td>2008/11/13</td>
							<td>$183,000</td>
						</tr>
						<tr>
							<td>Michael Bruce</td>
							<td>Javascript Developer</td>
							<td>Singapore</td>
							<td>29</td>
							<td>2011/06/27</td>
							<td>$183,000</td>
						</tr>
						<tr>
							<td>Donna Snider</td>
							<td>Customer Support</td>
							<td>New York</td>
							<td>27</td>
							<td>2011/01/25</td>
							<td>$112,000</td>
						</tr>
					</tbody>
				</table>

http://datatables.net/examples/plug-ins/api.html

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