add tslint and fix errors

package.json

@@ -51,6 +51,7 @@
     "cross-env": "^5.2.0",
     "mocha": "^6.1.4",
     "ts-node": "^8.3.0",
+    "tslint": "^6.0.0-beta0",
     "typescript": "^3.5.3"
   }
 }

src/config.ts

@@ -1,3 +1,15 @@
 export default interface Config {
+  name: string;
+  url: string;
+  charset: string;
+  origin: string;
+  protocol: string;
+  timeout: number;
+  blobSize: number;
+  preventIdleTimeout: number;
+  terminal: {
+    columns: number;
+    rows: number;
+  };
   [key: string]: any;
-};
+}

src/sites/ptt/Article.ts

@@ -16,8 +16,8 @@ export class Article {
   }
 
   static fromLine(line: string): Article {
-    let article = new Article();
-    article.sn     =+substrWidth('dbcs', line, 1,   7).trim();
+    const article = new Article();
+    article.sn     = +substrWidth('dbcs', line, 1,   7).trim();
     article.push   = substrWidth('dbcs', line, 9,   2).trim();
     article.date   = substrWidth('dbcs', line, 11,  5).trim();
     article.author = substrWidth('dbcs', line, 17, 12).trim();
@@ -27,7 +27,7 @@ export class Article {
     return article;
   }
 
-  get content(): ReadonlyArray<string> { 
+  get content(): ReadonlyArray<string> {
     return this._content;
   }
   set content(data: ReadonlyArray<string>) {
@@ -42,6 +42,6 @@ export class Article {
   set lines(data: ReadonlyArray<string>) {
     this.content = data;
   }
-};
+}
 
 export default Article;

src/sites/ptt/Board.ts

@@ -8,15 +8,15 @@ export class Board {
   title: string;
   users: string;
   admin: string;
-  folder: boolean = false;
-  divider: boolean = false;
+  folder = false;
+  divider = false;
 
   constructor() {
   }
 
   static fromLine(line: string): Board {
-    let board = new Board();
-    board.bn        =+substrWidth('dbcs', line,  3,  4).trim();
+    const board = new Board();
+    board.bn        = +substrWidth('dbcs', line,  3,  4).trim();
     board.read      = substrWidth('dbcs', line,  8,  2).trim() === '';
     board.boardname = substrWidth('dbcs', line, 10, 12).trim();
     board.category  = substrWidth('dbcs', line, 23,  4).trim();
@@ -42,4 +42,4 @@ export class Board {
     return board;
   }
 
-};
+}