From 15ca0e5ae6747af2fb8e5c898a89c48f4ddef0a3 Mon Sep 17 00:00:00 2001
From: alexcjohnson <alex@plot.ly>
Date: Wed, 11 Sep 2019 12:10:27 -0400
Subject: [PATCH] get rid of no-undefined eslint rule

---
 dash-renderer/.eslintrc.json            | 3 +--
 dash-renderer/src/persistence.js        | 4 ++--
 dash-renderer/tests/persistence.test.js | 1 -
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/dash-renderer/.eslintrc.json b/dash-renderer/.eslintrc.json
index 92fd550520..702fbecbe7 100644
--- a/dash-renderer/.eslintrc.json
+++ b/dash-renderer/.eslintrc.json
@@ -110,7 +110,6 @@
       "no-sequences": ["error"],
       "no-shadow": ["off"],
       "no-throw-literal": ["error"],
-      "no-undefined": ["error"],
       "no-unused-expressions": ["error"],
       "no-use-before-define": ["error", "nofunc"],
       "no-useless-call": ["error"],
@@ -147,4 +146,4 @@
       "no-underscore-dangle": ["off"],
       "no-useless-escape": ["off"]
     }
-  }
\ No newline at end of file
+  }
diff --git a/dash-renderer/src/persistence.js b/dash-renderer/src/persistence.js
index 697ac15012..d0a9b099cf 100644
--- a/dash-renderer/src/persistence.js
+++ b/dash-renderer/src/persistence.js
@@ -100,8 +100,8 @@ function keyPrefixMatch(prefix, separator) {
 }
 
 const UNDEFINED = 'U';
-const _parse = val => (val === UNDEFINED ? void 0 : JSON.parse(val || null));
-const _stringify = val => (val === void 0 ? UNDEFINED : JSON.stringify(val));
+const _parse = val => (val === UNDEFINED ? undefined : JSON.parse(val || null));
+const _stringify = val => (val === undefined ? UNDEFINED : JSON.stringify(val));
 
 class WebStore {
     constructor(backEnd) {
diff --git a/dash-renderer/tests/persistence.test.js b/dash-renderer/tests/persistence.test.js
index b8d52290a4..ac5c3df889 100644
--- a/dash-renderer/tests/persistence.test.js
+++ b/dash-renderer/tests/persistence.test.js
@@ -1,5 +1,4 @@
 /* eslint-disable no-magic-numbers */
-/* eslint-disable no-undefined */
 /* eslint-disable no-console */
 import {recordUiEdit, stores, storePrefix} from '../src/persistence';