[jQuery] radio, checkbox ( val, check, is(':checked') )

val (radio)

$(':radio[name="rd"]:checked').val();

true, false (checkbox)

$(':checkbox).is(':checked');

return true, false;

체크

set : $('input:radio[name="rd"]:input[value='+rd+']').attr("checked", true);

<input type="radio" name="rd" value="1"> 

<input type="checkbox" name="cb" checked>