Fix various lint errors (#15530)

types/navigo/index.d.ts

@@ -4,13 +4,12 @@
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 interface NavigoHooks {
-    before?: ((done: (suppress?: boolean) => void) => void);
-    after?: () => void;
+    before?(done: (suppress?: boolean) => void): void;
+    after?(): void;
 }
-type RouteHandler = ((parametersObj: any, query: string) => void) | { as: string; uses: (parametersObj: any) => void };
+type RouteHandler = ((parametersObj: any, query: string) => void) | { as: string; uses(parametersObj: any): void };
 
 declare class Navigo {
-
     /**
      * Constructs the router
      * @param root The main URL of your application.
@@ -18,7 +17,6 @@ declare class Navigo {
      */
     constructor(root?: string | null, useHash?: boolean);
 
-
     on(location: string, handler: RouteHandler, hooks?: NavigoHooks): Navigo;
     on(location: RegExp, handler: (...parameters: string[]) => void, hooks?: NavigoHooks): Navigo;
     on(routes: { [key: string]: RouteHandler }): Navigo;
@@ -46,4 +44,4 @@ declare class Navigo {
     destroy(): void;
 }
 export = Navigo;
-export as namespace Navigo;
+export as namespace Navigo;

types/navigo/navigo-tests.ts

@@ -1,9 +1,9 @@
 import Navigo = require("navigo");
 
-var root = null;
-var useHash = false;
+const root = null;
+const useHash = false;
 
-var router = new Navigo(root, useHash);
+let router = new Navigo(root, useHash);
 
 router
     .on('/products/list', () => {
@@ -33,7 +33,7 @@ router
         'products/:id': () => {
             // do something
         },
-        'products': () => {
+        products: () => {
             // do something
         },
         '*': () => {
@@ -42,7 +42,6 @@ router
     })
     .resolve();
 
-
 router
     .on('/user/:id/:action', (params: { id: string; action: string }) => {
         // If we have http://site.com/user/42/save as a url then
@@ -89,7 +88,7 @@ router.navigate('/products/list');
 router.navigate('http://site.com/products/list', true);
 
 router = new Navigo('http://site.com/', true);
-var handler = () => {
+const handler = () => {
     // do something
 };
 router.on({
@@ -97,7 +96,7 @@ router.on({
     '/trip/save': { as: 'trip.save', uses: handler },
     '/trip/:action/:tripId': { as: 'trip.action', uses: handler }
 });
-var a: string = (router.generate('trip.edit', { tripId: 42 })); // --> /trip/42/edit
+let a: string = (router.generate('trip.edit', { tripId: 42 })); // --> /trip/42/edit
 a = (router.generate('trip.action', { tripId: 42, action: 'save' })); // --> /trip/save/42
 a = (router.generate('trip.save')); // --> /trip/save