Add table row in jQuery

2018-12-31 00:51发布

站内问答 / JavaScript
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What is the best method in jQuery to add an additional row to a table as the last row?

Is this acceptable?

$('#myTable').append('<tr><td>my data</td><td>more data</td></tr>');

Are there limitations to what you can add to a table like this (such as inputs, selects, number of rows)?

30条回答
牵手、夕阳
2楼-- · 2018-12-31 01:23 
    // Create a row and append to table
    var row = $('<tr />', {})
        .appendTo("#table_id");

    // Add columns to the row. <td> properties can be given in the JSON
    $('<td />', {
        'text': 'column1'
    }).appendTo(row);

    $('<td />', {
        'text': 'column2',
        'style': 'min-width:100px;'
    }).appendTo(row);
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深知你不懂我心
3楼-- · 2018-12-31 01:23 
$('#myTable').append('<tr><td>my data</td><td>more data</td></tr>');

will add a new row to the first TBODY of the table, without depending of any THEAD or TFOOT present. (I didn't find information from which version of jQuery .append() this behavior is present.)

You may try it in these examples:

<table class="t"> <!-- table with THEAD, TBODY and TFOOT -->
<thead>
  <tr><th>h1</th><th>h2</th></tr>
</thead>
<tbody>
  <tr><td>1</td><td>2</td></tr>
</tbody>
<tfoot>
  <tr><th>f1</th><th>f2</th></tr>
</tfoot>
</table><br>

<table class="t"> <!-- table with two TBODYs -->
<thead>
  <tr><th>h1</th><th>h2</th></tr>
</thead>
<tbody>
  <tr><td>1</td><td>2</td></tr>
</tbody>
<tbody>
  <tr><td>3</td><td>4</td></tr>
</tbody>
<tfoot>
  <tr><th>f1</th><th>f2</th></tr>
</tfoot>
</table><br>

<table class="t">  <!-- table without TBODY -->
<thead>
  <tr><th>h1</th><th>h2</th></tr>
</thead>
</table><br>

<table class="t">  <!-- table with TR not in TBODY  -->
  <tr><td>1</td><td>2</td></tr>
</table>
<br>
<table class="t">
</table>

<script>
$('.t').append('<tr><td>a</td><td>a</td></tr>');
</script>

In which example a b row is inserted after 1 2, not after 3 4 in second example. If the table were empty, jQuery creates TBODY for a new row.

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无与为乐者.
4楼-- · 2018-12-31 01:24

jQuery has a built-in facility to manipulate DOM elements on the fly.

You can add anything to your table like this:

$("#tableID").find('tbody')
    .append($('<tr>')
        .append($('<td>')
            .append($('<img>')
                .attr('src', 'img.png')
                .text('Image cell')
            )
        )
    );

The $('<some-tag>') thing in jQuery is a tag object that can have several attr attributes that can be set and get, as well as text, which represents the text between the tag here: <tag>text</tag>.

This is some pretty weird indenting, but it's easier for you to see what's going on in this example.

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像晚风撩人
5楼-- · 2018-12-31 01:25

What if you had a <tbody> and a <tfoot>?

Such as:

<table>
    <tbody>
        <tr><td>Foo</td></tr>
    </tbody>
    <tfoot>
        <tr><td>footer information</td></tr>
    </tfoot>
</table>

Then it would insert your new row in the footer - not to the body.

Hence the best solution is to include a <tbody> tag and use .append, rather than .after.

$("#myTable > tbody").append("<tr><td>row content</td></tr>");
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临风纵饮
6楼-- · 2018-12-31 01:25

I know you have asked for a jQuery method. I looked a lot and find that we can do it in a better way than using JavaScript directly by the following function.

tableObject.insertRow(index)

index is an integer that specifies the position of the row to insert (starts at 0). The value of -1 can also be used; which result in that the new row will be inserted at the last position.

This parameter is required in Firefox and Opera, but it is optional in Internet Explorer, Chrome and Safari.

If this parameter is omitted, insertRow() inserts a new row at the last position in Internet Explorer and at the first position in Chrome and Safari.

It will work for every acceptable structure of HTML table.

The following example will insert a row in last (-1 is used as index):

<html>
    <head>
        <script type="text/javascript">
        function displayResult()
        {
            document.getElementById("myTable").insertRow(-1).innerHTML = '<td>1</td><td>2</td>';
        }
        </script>
    </head>

    <body>       
        <table id="myTable" border="1">
            <tr>
                <td>cell 1</td>
                <td>cell 2</td>
            </tr>
            <tr>
                <td>cell 3</td>
                <td>cell 4</td>
            </tr>
        </table>
        <br />
        <button type="button" onclick="displayResult()">Insert new row</button>            
    </body>
</html>

I hope it helps.

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怪性笑人.
7楼-- · 2018-12-31 01:25

if you have another variable you can access in <td> tag like that try.

This way I hope it would be helpful

var table = $('#yourTableId');
var text  = 'My Data in td';
var image = 'your/image.jpg'; 
var tr = (
  '<tr>' +
    '<td>'+ text +'</td>'+
    '<td>'+ text +'</td>'+
    '<td>'+
      '<img src="' + image + '" alt="yourImage">'+
    '</td>'+
  '</tr>'
);

$('#yourTableId').append(tr);
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