Get input tag inside a table

Question

I have a table structure like this..

<form name="kuchbhi">
    <table id="x">
        <tr name="alpha"> 
            <td><input name="a" type="checkbox"></td>
            <td><input name="b" type="checkbox"></td>
        </tr>
        <tr name="beta"> 
            <td><input name="a" type="checkbox"></td>
            <td><input name="b" type="checkbox"></td>
        </tr>
    </table>
    <table id="y">
        <tr name="alpha"> 
            <td><input name="a" type="checkbox"></td>
            <td><input name="b" type="checkbox"></td>
        </tr>
        <tr name="beta">
            <td><input name="a" type="checkbox"></td>
            <td><input name="b" type="checkbox"></td> <!--This one-->
        </tr>
    </table>
</form>

Now, I have only 2 info (tr name) and (input name). For example I have (beta, a). Now I want to put a check on that checkbox (on the second table named y). How to select that checkbox?

Answer 1

try this:

 var trname = 'beta'; var inname = 'a'; $( 'tr[name="' + trname + '"] input[name="' + inname + '"]' ).attr( 'checked', 'checked' ); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <form name="kuchbhi"> <table id="x"> <tr name="alpha"> <td><input name="a" type="checkbox"></td> <td><input name="b" type="checkbox"></td> </tr> <tr name="beta"> <td><input name="a" type="checkbox"></td> <td><input name="b" type="checkbox"></td> </tr> </table> <table id="y"> <tr name="alpha"> <td><input name="a" type="checkbox"></td> <td><input name="b" type="checkbox"></td> </tr> <tr name="beta"> <td><input name="a" type="checkbox"></td> <td><input name="b" type="checkbox"></td> <!--This one--> </tr> </table> </form> 

Answer 2

使用jquery，如下所示：

$('#y tr[name=beta] td>input[name=b]')