for (let i = 0; i < 3; i++) { var z = document.getElementById("table_st").rows[i].cells; subtitles.innerHTML=subtitles.innerHTML+z[0].innerHTML+" "+z[1].innerHTML+" "+z[2].innerHTML+"\n"; }aqui pongo <3 porque no se el numero de fila que tiene la tabla table_st"
Encuentra el número de filas y columnas en una tabla.
let len = document.getElementById("resultsTable").rows.length; for (let i = 0; i < len; i++) { var z = document.getElementById("resultsTable").rows[i].cells.length; console.log("Row no : ",i+1," has column : ",z) } <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <link href="https://unpkg.com/bootstrap@3.3.2/dist/css/bootstrap.min.css" rel="stylesheet" /> <title>Document</title> </head> <body style="margin: 100px"> <table id="resultsTable" data-tableName="Test Table 2" class="table table-bordered" > <thead> <tr class="noExl"> <td>This shouldn't get exported</td> <td>This shouldn't get exported either</td> <td>This shouldn't get exported either</td> </tr> <tr style="background-color: #dddddd ;"> <th>Company</th> <th>Contact</th> <th>Country</th> </tr> </thead> <tbody> <tr> <td>Alfreds Futterkiste</td> <td>Maria Anders</td> <td>Germany</td> </tr> <tr> <td>Centro comercial Moctezuma</td> <td>Francisco Chang</td> <td>Mexico</td> </tr> <tr> <td>Ernst Handel</td> <td>Roland Mendel</td> <td>Austria</td> </tr> <tr> <td>Island Trading</td> <td>Helen Bennett</td> </tr> <tr> <td>Laughing Bacchus Winecellars</td> <td>Yoshi Tannamuri</td> <td>Canada</td> </tr> </tbody> <tfoot> <tr> <td>Magazzini Alimentari Riuniti</td> <td>Giovanni Rovelli</td> <td>Italy</td> </tr> </tfoot> </table> </body> <script src="https://unpkg.com/jquery@3.3.1/dist/jquery.min.js"></script> <script src="https://unpkg.com/bootstrap@3.3.2/dist/js/bootstrap.min.js"></script> <script src="https://cdn.rawgit.com/rainabba/jquery-table2excel/1.1.0/dist/jquery.table2excel.min.js"></script> </html>Para obtener el número de filas:
document.getElementById("table_st").rows.length;En tu ejemplo:
for (let i = 0; i < document.getElementById("table_st").rows.length; i++) { var z = document.getElementById("table_st").rows[i].cells; subtitles.innerHTML=subtitles.innerHTML+z[0].innerHTML+" "+z[1].innerHTML+" "+z[2].innerHTML+"\n"; }