javascript - Change numberic value in td with jquery -


how can increase numeric values in <td> element using jquery? tried following no luck. have button id="#increasenum", , trying change td cell value click.

html:

<table> <tr>    <td id="num">1</td>    <td id="num">5</td>    <td id="num">10</td> </tr> </table>

js:

$(document).ready(function() {     $("#increasenum").click(function() {             $("#num").html(number(("#num").innertext) + 1);     }); });

this makes first <td> value disappear. suggestions?

try :remove duplicate ids , use class instead. iterate each num increment value shown below

html:

<table> <tr>    <td class="num">1</td>    <td class="num">5</td>    <td class="num">10</td> </tr> </table>

jquery :

$(document).ready(function () {     $("#increasenum").click(function () {         $(".num").each(function(){            $(this).html(parseint($(this).html())+1);         });     }); });

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