From a94b58e3048e12af8110ec076031b488eb77f30a Mon Sep 17 00:00:00 2001
From: fragosti <francesco.agosti93@gmail.com>
Date: Fri, 19 Apr 2019 17:57:06 -0500
Subject: [PATCH] Remove lodash is undefined

---
 .../src/components/instant_heading.tsx        |  2 +-
 .../components/zero_ex_instant_container.tsx  |  3 +--
 .../components/zero_ex_instant_provider.tsx   | 22 +++++++++----------
 3 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/packages/instant/src/components/instant_heading.tsx b/packages/instant/src/components/instant_heading.tsx
index 8d8051996c..ef7a74fab8 100644
--- a/packages/instant/src/components/instant_heading.tsx
+++ b/packages/instant/src/components/instant_heading.tsx
@@ -38,7 +38,7 @@ export class InstantHeading extends React.PureComponent<InstantHeadingProps, {}>
 
     private _renderAssetHeadingContent(): React.ReactNode {
         const { selectedAsset } = this.props;
-        if (_.isUndefined(selectedAsset)) {
+        if (selectedAsset === undefined) {
             // TODO: Only the ERC20 flow supports selecting assets.
             return this._renderERC20AssetHeading();
         }
diff --git a/packages/instant/src/components/zero_ex_instant_container.tsx b/packages/instant/src/components/zero_ex_instant_container.tsx
index e3e5837cf0..752c78f4a8 100644
--- a/packages/instant/src/components/zero_ex_instant_container.tsx
+++ b/packages/instant/src/components/zero_ex_instant_container.tsx
@@ -1,5 +1,4 @@
 import { AssetProxyId } from '@0x/types';
-import * as _ from 'lodash';
 import * as React from 'react';
 
 import PoweredByLogo from '../assets/powered_by_0x.svg';
@@ -88,7 +87,7 @@ export class ZeroExInstantContainer extends React.PureComponent<
     }
     private readonly _handleSymbolClick = (asset?: Asset): void => {
         // TODO: If ERC721 link open sea or allow to choose another ERC721?
-        if (_.isUndefined(asset) || asset.metaData.assetProxyId === AssetProxyId.ERC20) {
+        if (asset === undefined || asset.metaData.assetProxyId === AssetProxyId.ERC20) {
             analytics.trackTokenSelectorOpened();
             this.setState({
                 tokenSelectionPanelAnimationState: 'slidIn',
diff --git a/packages/instant/src/components/zero_ex_instant_provider.tsx b/packages/instant/src/components/zero_ex_instant_provider.tsx
index 75df0f84d7..68dd1dafe4 100644
--- a/packages/instant/src/components/zero_ex_instant_provider.tsx
+++ b/packages/instant/src/components/zero_ex_instant_provider.tsx
@@ -48,19 +48,19 @@ export class ZeroExInstantProvider extends React.PureComponent<ZeroExInstantProv
             ...defaultState.assetMetaDataMap,
         };
 
-        const selectedAsset = _.isUndefined(props.defaultSelectedAssetData)
-            ? undefined
-            : assetUtils.createAssetFromAssetDataOrThrow(
-                  props.defaultSelectedAssetData,
-                  completeAssetMetaDataMap,
-                  networkId,
-              );
+        const selectedAsset =
+            props.defaultSelectedAssetData === undefined
+                ? undefined
+                : assetUtils.createAssetFromAssetDataOrThrow(
+                      props.defaultSelectedAssetData,
+                      completeAssetMetaDataMap,
+                      networkId,
+                  );
 
         let selectedAssetUnitAmount: BigNumber | undefined = new BigNumber(1);
-        if (!_.isUndefined(selectedAsset) && selectedAsset.metaData.assetProxyId === AssetProxyId.ERC20) {
-            selectedAssetUnitAmount = _.isUndefined(props.defaultAssetBuyAmount)
-                ? undefined
-                : new BigNumber(props.defaultAssetBuyAmount);
+        if (selectedAsset !== undefined && selectedAsset.metaData.assetProxyId === AssetProxyId.ERC20) {
+            selectedAssetUnitAmount =
+                props.defaultAssetBuyAmount === undefined ? undefined : new BigNumber(props.defaultAssetBuyAmount);
         }
 
         // construct the final state