refactor: enable stricter TS flags

Author: darrachequesne

lib/parser.ts

@@ -48,7 +48,7 @@ export const Parser = {
     }
   },
 
-  decodePacket(encodedPacket: RawData, binaryType?: BinaryType): Packet {
+  decodePacket(encodedPacket: RawData, _binaryType?: BinaryType): Packet {
     if (typeof encodedPacket !== "string") {
       return {
         type: "message",

lib/transports/websocket.ts

@@ -46,7 +46,7 @@ export class WS extends Transport {
     this.onPacket(Parser.decodePacket(message));
   }
 
-  public onCloseEvent(code: number, message: string) {
+  public onCloseEvent(_code: number, _message: string) {
     debug("on close");
     this.onClose();
   }

tsconfig.json

@@ -25,9 +25,9 @@
     "noImplicitOverride": true,
 
     // Some stricter flags (disabled by default)
-    "noUnusedLocals": false,
-    "noUnusedParameters": false,
-    "noPropertyAccessFromIndexSignature": false
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noPropertyAccessFromIndexSignature": true
   },
   "include": [
     "./lib/**/*"