Answers for "on select radio button submit form javascript -jquery -$"

jquery select radio

$(function() {
    var $radios = $('input:radio[name=gender]');
    if($radios.is(':checked') === false) {
        $radios.filter('[value=Male]').prop('checked', true);
    }
});

Select radio button through JQuery

$("#radio_1").prop("checked", true);

input radio trigger select jquery

$('input').prop('checked', true)