Move Tr to thead first and replace td with th using jquery

Question

I have a string returned from an ajax call like this

<table>
<tbody>
<tr>
<td>Name</td>
<td>Age</td>
</tr>
<tr>
<td>Ron</td>
<td>28</td>
</tr>
</tbody>
</table>

Now I want to rebuild it on

<table>
<thead>
<tr>
<th>Name</th>
<th>Age</th>
</tr></thead>
<tbody>
<tr>
<td>Ron</td>
<td>28</td>
</tr>
</tbody>
</table>

How to do it in jQuery?

The line below inserts aad and copies the first tr into it

$(data.d).prepend("<thead></thead>").find("thead").html($(data.d).find("tr:eq(0)"))

I am trying to delete the first line in tbody after the previous line using this line

$(data.d).find("tbody tr:eq(0)").remove()

How to add thead, move, first trto tbodyhim, to replace all tdinside this on th, and finally, to remove the first troftbody

Answer 1

Step by step solution

var jsonString = "<table><tbody><tr><td>Name</td><td>Age</td></tr><tr><td>Ron</td><td>28</td></tr></tbody></table>";
var t =$(jsonString); //jquery Table Object
var firstTR = $('tr:first',t); //geting firstTR
$('<thead></thead>')
  .prependTo(t)
  .append(
    $('td',firstTR).map(
       function(i,e){
         return $("<th>").html(e.textContent).get(0);
       }
    )
);

firstTR.remove();//removing First TR

$("#div").html(t);

//Output
console.log(t.html());

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="div">
 
</div>

Run codeHide result

Answer 2

My suggestion:

• ,

$(function () {
  var th = $('table tbody tr:first td').map(function(i, e) {
    return $('<th>').append(e.textContent).get(0);
  });
  $('table tbody').prepend($('<thead>').append(th)).find('tr:first').remove();
  console.log($('table').html());
});

<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>

<table>
    <tbody>
    <tr>
        <td>Name</td>
        <td>Age</td>
    </tr>
    <tr>
        <td>Ron</td>
        <td>28</td>
    </tr>
    </tbody>
</table>

Hide result

Answer 3

:

t = $('table#tbl2')
firstTr = t.find('tr:first').remove()
firstTr.find('td').contents().unwrap().wrap('<th>')

t.prepend($('<thead></thead>').append(firstTr))

table thead tr th {
  background: green;
}
table tbody tr td {
  background: red;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table id="tbl1"><tbody><tr><td>Name</td><td>Age</td></tr><tr><td>Ron</td><td>28</td></tr></tbody></table>
<br /><br />
<table id="tbl2"><tbody><tr><td>Name</td><td>Age</td></tr><tr><td>Ron</td><td>28</td></tr></tbody></table>

Hide result

:

• tr dom.
• td, contents() td.
• contents() td th.
• <thead> tr, thead

Answer 4

:

$('table').prepend('<thead></thead>'); // Add thead
$('table tr:eq(0)').prependTo('table thead'); // move first tr to thead
$('table thead').html(function(id, html) {  // you might use callback to set html in jquery
    return html.replace(/td>/g, 'th>'); // replace td by th
                       // use regExp to replace all
});

.prependTo, , .html- jquery.

:

http://api.jquery.com/prependto/

http://api.jquery.com/appendto/