From 0c3fe43be7612f2f49828e9bd310d68524c3dc67 Mon Sep 17 00:00:00 2001
From: monoid <jaeung@prelude.duckdns.org>
Date: Tue, 21 Jun 2022 14:43:15 +0900
Subject: [PATCH] fix type error

---
 package.json                       | 1 +
 src/client/page/contentinfo.tsx    | 2 +-
 src/content/comic.ts               | 2 +-
 src/diff/watcher/watcher_filter.ts | 6 ++++++
 4 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index fd3bb83..04717bb 100644
--- a/package.json
+++ b/package.json
@@ -53,6 +53,7 @@
   "license": "ISC",
   "dependencies": {
     "@louislam/sqlite3": "^6.0.0",
+    "@types/koa-compose": "^3.2.5",
     "chokidar": "^3.5.1",
     "jsonschema": "^1.4.0",
     "jsonwebtoken": "^8.5.1",
diff --git a/src/client/page/contentinfo.tsx b/src/client/page/contentinfo.tsx
index 3fbe321..ab3ca8d 100644
--- a/src/client/page/contentinfo.tsx
+++ b/src/client/page/contentinfo.tsx
@@ -33,7 +33,7 @@ export function ReaderPage(props?: {}) {
     if (match == null) {
         throw new Error("unreachable");
     }
-    const id = Number.parseInt(match.id);
+    const id = Number.parseInt(match.id ?? "NaN");
     const [info, setInfo] = useState<DocumentState>({ doc: undefined, notfound: false });
     const menu_list = (link?: string) => <CommonMenuList url={link}></CommonMenuList>;
 
diff --git a/src/content/comic.ts b/src/content/comic.ts
index 003f666..4a9b06f 100644
--- a/src/content/comic.ts
+++ b/src/content/comic.ts
@@ -37,7 +37,7 @@ export class ComicReferrer extends createDefaultClass("comic"){
         if(this.desc === undefined) 
             throw new Error(`??? JSON.parse is returning undefined. ${this.path} desc.json format error`);
     }
-
+    
     async createDocumentBody(): Promise<DocumentBody>{
         await this.initDesc();
         const basebody = await super.createDocumentBody();
diff --git a/src/diff/watcher/watcher_filter.ts b/src/diff/watcher/watcher_filter.ts
index bed3049..e0bfb30 100644
--- a/src/diff/watcher/watcher_filter.ts
+++ b/src/diff/watcher/watcher_filter.ts
@@ -9,6 +9,12 @@ export class WatcherFilter extends EventEmitter implements IDiffWatcher{
     on<U extends keyof DiffWatcherEvent>(event:U,listener:DiffWatcherEvent[U]): this{
         return super.on(event,listener);
     }
+    /**
+     * emit event
+     * @param event 
+     * @param arg 
+     * @returns `true` if the event had listeners, `false` otherwise.
+     */
     emit<U extends keyof DiffWatcherEvent>(event:U,...arg:Parameters<DiffWatcherEvent[U]>): boolean{
         if(event === "change"){
             const prev = arg[0];