html - Setting Checkbox in a Table Using Javascript -

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trying set checkbox inside table. thought straightforward , similar doing in form.

i can form , getting stuck when checkbox in table.

when checkbox in form use:

 <form name="access_menu_form">     <input type="checkbox" name="mybox_name" id="mybox_id" value="1">  </form>   document.access_menu_form.mybox_name.checked == true

which works great!!

i know missing key point dom. trying set checkbox have in table fails using similar technique fails:

my table:

 <table name="access_table">    <thead>     <tr>       <th>area</th>        <th>item</th>        <th>access</th>      </tr>   </thead>  <tr>    <td><input type="checkbox" name="mybox_name" id="mybox_id" value="1"></td>    <td><input type="checkbox" name="mybox1_name" id="mybox1_id" value="1"></td>    <td></td>  </tr>  </table>

my script

 document.access_table.mybox_name.checked = false;

i error: uncaught typeerror: cannot read property 'mybox' of undefined

 document.mybox_name.checked = false;

i error: uncaught typeerror: cannot set property 'checked' of undefined

  • use 'checked' attribute
  • let javascript find checkbox using following, document.getelementbyid('mybox_id')

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