/Javascript/jQuery/Jquery determine empty value radio by name

Jquery determine empty value radio by name

  $("form").submit(function () {
    var flag = true;
    $(':radio').each(function () {
        name = $(this).attr('name');
        if (flag && !$(':radio[name="' + name + '"]:checked').length) {
            alert(name + ' group not checked');
            flag = false;
        }
    });
    return flag;
});

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