From cccd23b6d26f83af3be6b3a8e8cfd81a4522d865 Mon Sep 17 00:00:00 2001
From: Attacktive <welcome.hell.dude@gmail.com>
Date: Mon, 23 May 2022 13:31:54 +0900
Subject: [PATCH] Avoid type coercion.

---
 src/utils/history.ts | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/utils/history.ts b/src/utils/history.ts
index a8f2420..0de2298 100644
--- a/src/utils/history.ts
+++ b/src/utils/history.ts
@@ -1,4 +1,4 @@
-type History = Record<string, string>;
+type History = Record<number, string>;
 const history: History = {};
 let historyIndex = 0;
 
@@ -28,14 +28,15 @@ export function getCommandIfHistoryExpansion(input): string {
     if (index === '!') {
       command = getLast();
     } else {
-      command = get(index);
+      // parseInt here is guaranteed to succeed I suppose.
+      command = get(parseInt(index));
     }
   }
 
   return command;
 }
 
-function get(index: string): string {
+function get(index: number): string {
   return history[index];
 }