Максим Ткачев

(defn subtract-lists [lst1 lst2] (map - lst1 lst2)) (subtract-lists '(1 2 3) '(4 5 6)) ; => (-3 -3 -3)

(defn subtract-lists [lst1 lst2] (list (map - lst1 lst2))) (subtract-lists '(1 2 3) '(4 5 6)) ; => ((-3 -3 -3))

if (!isset($options[$k])) {
          $options[$k][] = $row['value'];
     }

"SEF_MODE"                                     => "N",

$fuser = Sale\Fuser::getId();
$basket = \Bitrix\Sale\Basket::create($siteId);
$basket->setFUserId($fuser);

$eventManager = \Bitrix\Main\EventManager::getInstance();

$eventManager->addEventHandler(
    'main',
    'OnSaleCheckPrepareData ',
'addCheckPrintType'
);

function addCheckPrintType(array $fields, string $type) : array{

        if(!empty($fields['PRODUCTS'])){
            foreach($fields['PRODUCTS'] as $key => $product){
                $fields['PRODUCTS'][$key]['PAYMENT_OBJECT'] = \Bitrix\Sale\Cashbox\Check::PAYMENT_OBJECT_SERVICE;
            }
        }

        return $fields;
    }

//регистрируем библиотеку 
CJSCore::RegisterExt(
    'custom_js',
    array(
        'js'   => '/local/js/custom.js',
        'css'  => '/local/css/custom.css',
        'lang' => '/local/js/lang/'.LANGUAGE_ID.'/custom.js.php',
        'rel'  => array(
            'ajax',
            'popup',
        ),
    )
);

//добавляем js d header не в административной части
if (!ВАШ_NAMESPACE\Main::inBitrixDir()) {
    CJSCore::Init('custom_js'); 
}

var CustomJS = BX.namespace('CustomJS');

CustomJS.initGlobalEvents = function () {
    var self = this;
    BX.addCustomEvent("SidePanel.Slider:onOpen", function (event) {
        CustomJS.addDealButtons();
    });
}

CustomJS.addDealButtons = function () {
    var page_title_btn_box = document.querySelector('.crm-pagetitle-btn-box');
    if (page_title_btn_box) {
        if (!document.getElementById('custom-btn-get-order')) {
            page_title_btn_box.prepend(
                BX.create('div', {
                    attrs: {
                        id: 'custom-btn-get-order',
                        className: 'ui-btn ui-btn-split ui-btn-themes ui-btn-light-border ui-btn-success'
                    },
                    text: BX.message('CUSTOM_BTN_GET_ORDER'),
                    events: {
                        click: BX.proxy(CustomJS.updateDealFromOrder, this)
                    },
                })
            );
        }
	}
}

CustomJS.updateDealFromOrder = function (event) {

console.log("Событие нажатие на кнопку")
}