jQuery each loop in table row [duplicate]

Question

I am having something like:

<table id="tblOne">
            <tbody>
                <tr>
                    <td>
                        <table id="tblTwo">
                            <tbody>
                                <tr>
                                    <td>
                                        Items
                                    </td>
                                </tr>
                                <tr>
                                    <td>
                                        Prod
                                    </td>
                                </tr>
                            </tbody>
                        </table>
                    </td>
                </tr>
                <tr>
                    <td>
                        Item 1
                    </td>
                </tr>
                <tr>
                    <td>
                        Item 2
                    </td>
                </tr>
            </tbody>
        </table>

I have written jQuery to loop through each tr like:

$('#tblOne tr').each(function() {...code...});

But problem is that it loops through the "tr" of "tblTwo" also which I don't want. Can anyone please suggest something to solve this?

Answer 1

In jQuery just use:

$('#tblOne > tbody  > tr').each(function() {...code...});

Using the children selector (>) you will walk over all the children (and not all descendents), example with three rows:

$('table > tbody  > tr').each(function(index, tr) { 
   console.log(index);
   console.log(tr);
});

Result:

0
<tr>
1 
<tr>
2
<tr>

---

In VanillaJS you can use document.querySelectorAll() and walk over the rows using forEach()

[].forEach.call(document.querySelectorAll('#tblOne > tbody  > tr'), function(index, tr) {
    /* console.log(index); */
    /* console.log(tr); */
});

Answer 2

Just a recommendation:

I'd recommend using the DOM table implementation, it's very straight forward and easy to use, you really don't need jQuery for this task.

var table = document.getElementById('tblOne');

var rowLength = table.rows.length;

for(var i=0; i<rowLength; i+=1){
  var row = table.rows[i];

  //your code goes here, looping over every row.
  //cells are accessed as easy

  var cellLength = row.cells.length;
  for(var y=0; y<cellLength; y+=1){
    var cell = row.cells[y];

    //do something with every cell here
  }
}

Answer 3

Use immediate children selector >:

$('#tblOne > tbody  > tr')

Description: Selects all direct child elements specified by "child" of elements specified by "parent".