Hess121

let index = 0;
                    let count_checked = 0;
                    setInterval(function() {
                        if (index === unchecked_accounts.length){
                            window.location.reload();
                        }
                        $.ajax({
                            url: 'plugins/seller_controller.php',
                            type: 'POST',
                            async: false,
                            data: {api: 'check_account', auth: auth, id: unchecked_accounts[index++]},
                            success: function (data) {
                                let result_json = JSON.parse(data);
                                ++count_checked;
                                $('#progress-bar').css('width', count_checked / accountCount * 100 + '%');
                                $('#account-login').html(result_json['login']);
                            },
                        });
                    }, 500);