Ausschließen von zusätzlichen Seiten beim Konvertieren von Datentabellen in PDF mit jsPDF-AutoTable-Plugin

Question

Ich habe versucht, eine minimale Datentabelle mit jsPDF-AutoTable-Plugin zu drucken. Hier ist das Live demo. Meine Codes

-

HTML

<button id="cmd">generate PDF</button> 
    <div id="content"> 
    <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> 
</div> 

JavaScript

var table = $('#example').DataTable(); 

var columns = ["Name", "Position", "Office", "Age", "Start date", "Salary"]; 
var rows = []; 
var table_data = table.rows().data(); 

for (var i in table_data) { 
    rows.push(table_data[i]); 
} 

var doc = new jsPDF('p', 'pt'); 
doc.autoTable(columns, rows); 



$('#cmd').click(function() { 
    doc.save('table.pdf'); 
}); 

Aus irgendeinem Grund einige zusätzliche Seite gedruckt wird. Ich habe noch keine Lösung für dieses Problem gefunden. Wie kann ich zusätzliche Seiten von pdf ausschließen?

Answer 1

Zyklus durch Array-Daten, wie unten gezeigt:

for(var i = 0; i < table_data.length; i++){  
    rows.push(table_data[i]); 
} 

API Methode data() anstelle des Klar Array API Instanz zurückgibt, so dass API-Methoden verkettet werden können. Wenn Sie jedoch auf Elemente mit [] zugreifen und die Array-Länge mit der Eigenschaft length abfragen, funktioniert das problemlos.

Siehe Code updated jsFiddle für Code und Demonstration.