JSFiddle - React, Tailwind, and code Playground

HTML

<input  name="confirm_button" id="confirm_button" type="button" value="Confirm" class="login_btn" />

JavaScript

function sub(callback) {
    $('#confirm_button').prop('type', 'submit');
    callback.call();
}

sub(function() {
    var me_type = $('#confirm_button').attr('type');
    $('body').append('<br /><br />This is now a ' + me_type + ' button');
});