Don't store empty objects

1 files changed, 6 insertions, 0 deletions

diff --git a/src/stores/balance_proxy_allowance_lazy_store.ts b/src/stores/balance_proxy_allowance_lazy_store.ts
index 5c54fbb3b..c83e61606 100644
--- a/src/stores/balance_proxy_allowance_lazy_store.ts
+++ b/src/stores/balance_proxy_allowance_lazy_store.ts
@@ -44,6 +44,9 @@ export class BalanceAndProxyAllowanceLazyStore {
     public deleteBalance(tokenAddress: string, userAddress: string): void {
         if (!_.isUndefined(this.balance[tokenAddress])) {
             delete this.balance[tokenAddress][userAddress];
+            if (_.isEmpty(this.balance[tokenAddress])) {
+                delete this.balance[tokenAddress];
+            }
         }
     }
     public async getProxyAllowanceAsync(tokenAddress: string, userAddress: string): Promise<BigNumber> {
@@ -67,6 +70,9 @@ export class BalanceAndProxyAllowanceLazyStore {
     public deleteProxyAllowance(tokenAddress: string, userAddress: string): void {
         if (!_.isUndefined(this.proxyAllowance[tokenAddress])) {
             delete this.proxyAllowance[tokenAddress][userAddress];
+            if (_.isEmpty(this.proxyAllowance[tokenAddress])) {
+                delete this.proxyAllowance[tokenAddress];
+            }
         }
     }
     public deleteAll(): void {