keyGen return type must be string

Ken Berkeley · Ken Berkeley · commit 0aef21a3a8f2 · 2018-01-09T16:56:43.000+08:00
diff --git a/src/_utils/keyGen.js b/src/_utils/keyGen.js
@@ -5,5 +5,5 @@ export default function (s) {
     hash = ((hash << 5) - hash) + s.charCodeAt(i)
     hash |= 0
   }
-  return hash
+  return '' + hash
 }
