using !empty instead of double check with isset

trim address before parsing

Block/Redirect/Redirect.php

@@ -217,11 +217,11 @@ class Redirect extends \Magento\Payment\Block\Form
             if ($this->_adyenHelper->isSeparateHouseNumberRequired($billingAddress->getCountryId())) {
                 $street = $this->_adyenHelper->getStreet($billingAddress);
 
-                if (isset($street['name']) && $street['name'] != "") {
+                if (!empty($street['name'])) {
                     $formFields['billingAddress.street'] = $street['name'];
                 }
 
-                if (isset($street['house_number']) && $street['house_number'] != "") {
+                if (!empty($street['house_number'])) {
                     $formFields['billingAddress.houseNumberOrName'] = $street['house_number'];
                 } else {
                     $formFields['billingAddress.houseNumberOrName'] = "NA";

Helper/Data.php

@@ -382,6 +382,9 @@ class Data extends AbstractHelper
         if (count($street) != 1) {
             return $street;
         }
+
+        $street['0'] = trim($street['0']);
+
         preg_match('/((\s\d{0,10})|(\s\d{0,10}\w{1,3}))$/i', $street['0'], $houseNumber, PREG_OFFSET_CAPTURE);
         if (!empty($houseNumber['0'])) {
             $_houseNumber = trim($houseNumber['0']['0']);