docs(auth): fix JS examples

Fix syntax errors in JS authentication examples.

Author: gmoe

content/techniques/authentication.md

@@ -246,8 +246,8 @@ import { AuthService } from './auth.service';
 @Dependencies(AuthService)
 export class LocalStrategy extends PassportStrategy(Strategy) {
   constructor(authService) {
-    this.authService = authService
     super();
+    this.authService = authService;
   }
 
   async validate(username, password) {
@@ -345,7 +345,7 @@ import { AuthGuard } from '@nestjs/passport';
 export class AppController {
   @UseGuards(AuthGuard('local'))
   @Post('auth/login')
-  @Bind(Req())
+  @Bind(Request())
   async login(req) {
     return req.user;
   }
@@ -446,8 +446,7 @@ import { JwtService } from '@nestjs/jwt';
 @Dependencies(UsersService, JwtService)
 @Injectable()
 export class AuthService {
-  constructor(usersService, jwtService)
-  ) {
+  constructor(usersService, jwtService) {
     this.usersService = usersService;
     this.jwtService = jwtService;
   }
@@ -571,7 +570,7 @@ export class AppController {
 
   @UseGuards(LocalAuthGuard)
   @Post('auth/login')
-  @Bind(Req())
+  @Bind(Request())
   async login(req) {
     return this.authService.login(req.user);
   }
@@ -740,25 +739,28 @@ export class AppController {
   }
 }
 @@switch
-import { Controller, Bind, Get, Request, Post, UseGuards } from '@nestjs/common';
+import { Controller, Dependencies, Bind, Get, Request, Post, UseGuards } from '@nestjs/common';
 import { JwtAuthGuard } from './auth/jwt-auth.guard';
 import { LocalAuthGuard } from './auth/local-auth.guard';
 import { AuthService } from './auth/auth.service';
 
+@Dependencies(AuthService)
 @Controller()
 export class AppController {
-  constructor(private authService: AuthService) {}
+  constructor(authService) {
+    this.authService = authService;
+  }
 
   @UseGuards(LocalAuthGuard)
   @Post('auth/login')
-  @Bind(Req())
+  @Bind(Request())
   async login(req) {
     return this.authService.login(req.user);
   }
 
   @UseGuards(JwtAuthGuard)
   @Get('profile')
-  @Bind(Req())
+  @Bind(Request())
   getProfile(req) {
     return req.user;
   }