From 8b49a6ed6bd290526d0b277a550a4cd0b12a34c0 Mon Sep 17 00:00:00 2001
From: Derrick Hammer <derrick@derrickhammer.com>
Date: Wed, 21 Sep 2022 16:55:46 -0400
Subject: [PATCH] *Ensure key is both not undefined and not null

---
 src/index.ts | 31 +++++++++++--------------------
 1 file changed, 11 insertions(+), 20 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index d6b6298..6dc2a0c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -226,23 +226,19 @@ export default class Config {
     key = key.replace(/-/g, "");
     key = key.toLowerCase();
 
-    if (this.hash[key] !== null) {
+    if (key in this.hash && this.hash[key] !== null) {
       return true;
     }
-
-    if (this.query[key] !== null) {
+    if (key in this.query && this.query[key] !== null) {
       return true;
     }
-
-    if (this.args[key] !== null) {
+    if (key in this.args && this.args[key] !== null) {
       return true;
     }
-
-    if (this.env[key] !== null) {
+    if (key in this.env && this.env[key] !== null) {
       return true;
     }
-
-    if (this.data[key] !== null) {
+    if (key in this.data && this.data[key] !== null) {
       return true;
     }
 
@@ -280,27 +276,22 @@ export default class Config {
     key = key.replace(/-/g, "");
     key = key.toLowerCase();
 
-    if (this.hash[key] !== null) {
+    if (key in this.hash && this.hash[key] !== null) {
       return this.hash[key];
     }
-
-    if (this.query[key] !== null) {
+    if (key in this.query && this.query[key] !== null) {
       return this.query[key];
     }
-
-    if (this.args[key] !== null) {
+    if (key in this.args && this.args[key] !== null) {
       return this.args[key];
     }
-
-    if (this.env[key] !== null) {
+    if (key in this.env && this.env[key] !== null) {
       return this.env[key];
     }
-
-    if (this.data[key] !== null) {
+    if (key in this.data && this.data[key] !== null) {
       return this.data[key];
     }
-
-    if (this.options[key] !== null) {
+    if (key in this.options && this.options[key] !== null) {
       return this.options[key];
     }