From fc3be810a25ce98402c686bd41606e08e7b5c2ac Mon Sep 17 00:00:00 2001
From: Fabio Berger <me@fabioberger.com>
Date: Fri, 2 Jun 2017 12:31:16 +0200
Subject: Implement zeroEx.exchange.subscribeAsync made sure to clean up
 subscriptions if user updates the provider

---
 src/utils/utils.ts | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/utils')

diff --git a/src/utils/utils.ts b/src/utils/utils.ts
index e6840a624..114b46f6c 100644
--- a/src/utils/utils.ts
+++ b/src/utils/utils.ts
@@ -22,4 +22,7 @@ export const utils = {
         const isValid = /^0x[0-9A-F]{64}$/i.test(orderHashHex);
         return isValid;
     },
+    spawnSwitchErr(name: string, value: any) {
+        return new Error(`Unexpected switch value: ${value} encountered for ${name}`);
+    },
 };
-- 
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