code refactor

src/consts/transaction.js

@@ -5,6 +5,11 @@ const allTransactionTypes = {
     Transfer: 4
 };
 
+const minAmount = '-999999999.99';
+const maxAmount = '999999999.99';
+
 export default {
     allTransactionTypes: allTransactionTypes,
+    minAmount: minAmount,
+    maxAmount: maxAmount,
 };