From e72d74a3cf75c5a0b14e856b56382a736d636eaa Mon Sep 17 00:00:00 2001
From: WooSignal <support@woosignal.com>
Date: Tue, 12 Nov 2019 15:55:10 +0000
Subject: [PATCH] Check for numeric value

---
 .../lib/pages/checkout_shipping_type.dart     | 27 ++++++++++++-------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/LabelStoreMax/lib/pages/checkout_shipping_type.dart b/LabelStoreMax/lib/pages/checkout_shipping_type.dart
index 06be3c6..ff205b6 100644
--- a/LabelStoreMax/lib/pages/checkout_shipping_type.dart
+++ b/LabelStoreMax/lib/pages/checkout_shipping_type.dart
@@ -96,15 +96,17 @@ class _CheckoutShippingTypePageState extends State<CheckoutShippingTypePage> {
 
       if (_shipping.methods.freeShipping != null) {
         _shipping.methods.freeShipping.forEach((freeShipping) {
-          Map<String, dynamic> tmpShippingOption = {};
-          tmpShippingOption = {
-            "id": freeShipping.id,
-            "method_id": "free_shipping",
-            "title": freeShipping.title,
-            "cost": freeShipping.cost,
-            "object": freeShipping
-          };
-          _wsShippingOptions.add(tmpShippingOption);
+          if (_isNumeric(freeShipping.cost)) {
+            Map<String, dynamic> tmpShippingOption = {};
+            tmpShippingOption = {
+              "id": freeShipping.id,
+              "method_id": "free_shipping",
+              "title": freeShipping.title,
+              "cost": freeShipping.cost,
+              "object": freeShipping
+            };
+            _wsShippingOptions.add(tmpShippingOption);
+          }
         });
       }
     }
@@ -118,6 +120,13 @@ class _CheckoutShippingTypePageState extends State<CheckoutShippingTypePage> {
     });
   }
 
+  bool _isNumeric(String str) {
+    if(str == null) {
+      return false;
+    }
+    return double.tryParse(str) != null;
+  }
+
   Future<String> _getShippingPrice(int index) async {
     double total = 0;
     List<CartLineItem> cartLineItem = await Cart.getInstance.getCart();