CODEWITHSUNDEEP
javascript
mrksbnch
mrksbnch

Reputation: 1842

check if a cell of table is <th>

Let's say we have a table like this

<table>
    <tr>
        <th>TH</th>
        <td>TD</td>
        <td>TD</td>
        <td>TD</td>
    </tr>
</table>

If I want to get the amount of columns in JS I can simply do something like

var columnCount = tableElement.tBodies[0].rows[0].cells.length

In this case the output is 4. Is there any way to find out how many <th> are inside a table row, so that the output for that example is 3?

Upvotes: 0

Views: 2142

Answers (2)

Michael Schneider
Michael Schneider

Reputation: 506

var thCount = tableElement.tBodies[0].rows[0].getElementsByTagName('th').length

or if you want only td's:

var tdCount = tableElement.tBodies[0].rows[0].getElementsByTagName('td').length

Upvotes: 6

Simone
Simone

Reputation: 21272

It's as simple as:

var columnCount = tableElement.tBodies[0].rows.length

This is to get all the rows.

Upvotes: 0

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