From c399b992e6665f194ebe08a48aae1ede32c6767f Mon Sep 17 00:00:00 2001
From: Shin'ya Ueoka <ueokande@i-beam.org>
Date: Fri, 6 Dec 2019 21:48:14 +0900
Subject: Identify the key is a digit

---
 src/shared/settings/Key.ts | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

(limited to 'src/shared/settings/Key.ts')

diff --git a/src/shared/settings/Key.ts b/src/shared/settings/Key.ts
index b11eeb2..3a3eb3b 100644
--- a/src/shared/settings/Key.ts
+++ b/src/shared/settings/Key.ts
@@ -1,3 +1,5 @@
+const digits = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
+
 export default class Key {
   public readonly key: string;
 
@@ -9,12 +11,18 @@ export default class Key {
 
   public readonly meta: boolean;
 
-  constructor({ key, shift, ctrl, alt, meta }: {
+  constructor({
+    key,
+    shift = false,
+    ctrl = false,
+    alt = false,
+    meta = false,
+  }: {
     key: string;
-    shift: boolean;
-    ctrl: boolean;
-    alt: boolean;
-    meta: boolean;
+    shift?: boolean;
+    ctrl?: boolean;
+    alt?: boolean;
+    meta?: boolean;
   }) {
     this.key = key;
     this.shift = shift;
@@ -51,6 +59,10 @@ export default class Key {
     });
   }
 
+  isDigit(): boolean {
+    return digits.includes(this.key);
+  }
+
   equals(key: Key) {
     return this.key === key.key &&
       this.ctrl === key.ctrl &&
-- 
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