Stackoverflow Response: Export to CSV using jQuery and html

http://stackoverflow.com/questions/16078544/export-to-csv-using-jquery-and-html

by Terry Young

HTML

<div>
Demo for StackOverflow Answer to the question: <a href="http://stackoverflow.com/questions/16078544/export-to-csv-using-jquery-and-html" target="_blank">Export to CSV using jQuery and html</a>
</div>


<button class="export">Export Table data into Excel</button>

<div id="dvData">
    <table>
        <tr>
            <th>Column One</th>
            <th>Column Two</th>
            <th>Column Three</th>
        </tr>
        <tr>
            <td>row1 Col1</td>
            <td>row1 Col2</td>
            <td>row1 Col3</td>
        </tr>
        <tr>
            <td>row2 Col1</td>
            <td>row2 Col2</td>
            <td>row2 Col3</td>
        </tr>
        <tr>
            <td>row3 Col1</td>
            <td>row3 Col2</td>
            <td>row3 Col3</td>
        </tr>
        <tr>
            <td>row4 'Col1'</td>
            <td>row4 'Col2'</td>
            <td>row4 'Col3'</td>
        </tr>
        <tr>
            <td>row5 &quot;Col1&quot;</td>
            <td>row5 &quot;Col2&quot;</td>
            <td>row5 &quot;Col3&quot;</td>
        </tr>
        <tr>
            <td>row6 "Col1"</td>
            <td>row6 "Col2"</td>
            <td>row6 "Col3"</td>
        </tr>
    </table>
</div>

JavaScript

$(document).ready(function() {

  function exportTableToCSV($table, filename) {

    var $rows = $table.find('tr:has(td)'),

      // Temporary delimiter characters unlikely to be typed by keyboard
      // This is to avoid accidentally splitting the actual contents
      tmpColDelim = String.fromCharCode(11), // vertical tab character
      tmpRowDelim = String.fromCharCode(0), // null character

      // actual delimiter characters for CSV format
      colDelim = '","',
      rowDelim = '"\r\n"',

      // Grab text from table into CSV formatted string
      csv = '"' + $rows.map(function(i, row) {
        var $row = $(row),
          $cols = $row.find('td');

        return $cols.map(function(j, col) {
          var $col = $(col),
            text = $col.text();

          return text.replace(/"/g, '""'); // escape double quotes

        }).get().join(tmpColDelim);

      }).get().join(tmpRowDelim)
      .split(tmpRowDelim).join(rowDelim)
      .split(tmpColDelim).join(colDelim) + '"';

    if (false && window.navigator.msSaveBlob) {
      // Deliberate 'false', see comment below

      var blob = new Blob([decodeURIComponent(csv)], {
        type: 'text/csv;charset=utf8'
      });

      // Crashes in IE 10, IE 11 and Microsoft Edge
      // See MS Edge Issue #10396033: https://goo.gl/AEiSjJ
      // Hence, the deliberate 'false'
      // This is here just for completeness
      // Remove the 'false' at your own risk
      window.navigator.msSaveBlob(blob, filename);

      
      
    /*@cc_on
    // IE9 executes this Conditional Compilation
      
    } else if ('ActiveXObject' in window) {
      
      // For IE9, create a hidden iframe,
      // write the CSV into the iframe, then use
      // execCommand to save the contents

      var $iframe = $('#csvDownloadFrame');
      if (!$iframe.length) {
        $iframe = $('<iframe>', {
          id: 'csvDownloadFrame',
          sandbox: "allow-forms allow-scripts",
          seamless: "seamless"
        })
 ...