Wie erhalte ich Daten aus einer Datentabelle in Javascript?

Question

Ich mag Daten ziehen (string) aus einer Spalte "Limit" in einer Tabelle ("displayTable") in JavaScript genannt. Wie mache ich das?

var table = document.getElementById('displayTable');  
var rowCount = table.rows.length;  
for (var i = 1; i < rowCount - 1; i++) {  
    var row = table.rows[i]["Limit"].ToString(); 
    alert(row); 
    ... 
} 

Answer 1

So habe ich das Lesen einer Tabelle in Javascript erreicht. Grundsätzlich habe ich in die Reihen gebohrt und konnte dann für jede Zeile in die einzelnen Zellen bohren. Dies sollte Ihnen eine Idee

//gets table 
var oTable = document.getElementById('myTable'); 

//gets rows of table 
var rowLength = oTable.rows.length; 

//loops through rows  
for (i = 0; i < rowLength; i++){ 

    //gets cells of current row 
    var oCells = oTable.rows.item(i).cells; 

    //gets amount of cells of current row 
    var cellLength = oCells.length; 

    //loops through each cell in current row 
    for(var j = 0; j < cellLength; j++){ 
     /* get your cell info here */ 
     /* var cellVal = oCells.item(j).innerHTML; */ 
    } 
} 

AKTUALISIERT geben - GETESTET SCRIPT

<table id="myTable"> 
    <tr> 
     <td>A1</td> 
     <td>A2</td> 
     <td>A3</td> 
    </tr> 
    <tr> 
     <td>B1</td> 
     <td>B2</td> 
     <td>B3</td> 
    </tr> 
</table> 
<script> 
    //gets table 
    var oTable = document.getElementById('myTable'); 

    //gets rows of table 
    var rowLength = oTable.rows.length; 

    //loops through rows  
    for (i = 0; i < rowLength; i++){ 

     //gets cells of current row 
     var oCells = oTable.rows.item(i).cells; 

     //gets amount of cells of current row 
     var cellLength = oCells.length; 

     //loops through each cell in current row 
     for(var j = 0; j < cellLength; j++){ 

       // get your cell info here 

       var cellVal = oCells.item(j).innerHTML; 
       alert(cellVal); 
      } 
    } 
</script> 

Answer 2

Verwendung Json & jQuery. Es ist viel einfacher als oldschool Javascript

function savedata1() { 

var obj = $('#myTable tbody tr').map(function() { 
var $row = $(this); 
var t1 = $row.find(':nth-child(1)').text(); 
var t2 = $row.find(':nth-child(2)').text(); 
var t3 = $row.find(':nth-child(3)').text(); 
return { 
    td_1: $row.find(':nth-child(1)').text(), 
    td_2: $row.find(':nth-child(2)').text(), 
    td_3: $row.find(':nth-child(3)').text() 
    }; 
}).get();