Changed function expressions declarations from let to const

Every variable that wouldn't change should be declared as const for safety reasons.

src/config/passport.ts

@@ -121,7 +121,7 @@ passport.use(new FacebookStrategy({
 /**
  * Login Required middleware.
  */
-export let isAuthenticated = (req: Request, res: Response, next: NextFunction) => {
+export const isAuthenticated = (req: Request, res: Response, next: NextFunction) => {
   if (req.isAuthenticated()) {
     return next();
   }
@@ -131,7 +131,7 @@ export let isAuthenticated = (req: Request, res: Response, next: NextFunction) =
 /**
  * Authorization Required middleware.
  */
-export let isAuthorized = (req: Request, res: Response, next: NextFunction) => {
+export const isAuthorized = (req: Request, res: Response, next: NextFunction) => {
   const provider = req.path.split("/").slice(-1)[0];
 
   if (_.find(req.user.tokens, { kind: provider })) {

src/controllers/api.ts

@@ -10,7 +10,7 @@ import { Response, Request, NextFunction } from "express";
  * GET /api
  * List of API examples.
  */
-export let getApi = (req: Request, res: Response) => {
+export const getApi = (req: Request, res: Response) => {
   res.render("api/index", {
     title: "API Examples"
   });
@@ -20,7 +20,7 @@ export let getApi = (req: Request, res: Response) => {
  * GET /api/facebook
  * Facebook API example.
  */
-export let getFacebook = (req: Request, res: Response, next: NextFunction) => {
+export const getFacebook = (req: Request, res: Response, next: NextFunction) => {
   const token = req.user.tokens.find((token: any) => token.kind === "facebook");
   graph.setAccessToken(token.accessToken);
   graph.get(`${req.user.facebook}?fields=id,name,email,first_name,last_name,gender,link,locale,timezone`, (err: Error, results: graph.FacebookUser) => {

src/controllers/contact.ts

@@ -13,7 +13,7 @@ const transporter = nodemailer.createTransport({
  * GET /contact
  * Contact form page.
  */
-export let getContact = (req: Request, res: Response) => {
+export const getContact = (req: Request, res: Response) => {
   res.render("contact", {
     title: "Contact"
   });
@@ -23,7 +23,7 @@ export let getContact = (req: Request, res: Response) => {
  * POST /contact
  * Send a contact form via Nodemailer.
  */
-export let postContact = (req: Request, res: Response) => {
+export const postContact = (req: Request, res: Response) => {
   req.assert("name", "Name cannot be blank").notEmpty();
   req.assert("email", "Email is not valid").isEmail();
   req.assert("message", "Message cannot be blank").notEmpty();

src/controllers/home.ts

@@ -4,7 +4,7 @@ import { Request, Response } from "express";
  * GET /
  * Home page.
  */
-export let index = (req: Request, res: Response) => {
+export const index = (req: Request, res: Response) => {
   res.render("home", {
     title: "Home"
   });

src/controllers/user.ts

@@ -14,7 +14,7 @@ const request = require("express-validator");
  * GET /login
  * Login page.
  */
-export let getLogin = (req: Request, res: Response) => {
+export const getLogin = (req: Request, res: Response) => {
   if (req.user) {
     return res.redirect("/");
   }
@@ -27,7 +27,7 @@ export let getLogin = (req: Request, res: Response) => {
  * POST /login
  * Sign in using email and password.
  */
-export let postLogin = (req: Request, res: Response, next: NextFunction) => {
+export const postLogin = (req: Request, res: Response, next: NextFunction) => {
   req.assert("email", "Email is not valid").isEmail();
   req.assert("password", "Password cannot be blank").notEmpty();
   req.sanitize("email").normalizeEmail({ gmail_remove_dots: false });
@@ -57,7 +57,7 @@ export let postLogin = (req: Request, res: Response, next: NextFunction) => {
  * GET /logout
  * Log out.
  */
-export let logout = (req: Request, res: Response) => {
+export const logout = (req: Request, res: Response) => {
   req.logout();
   res.redirect("/");
 };
@@ -66,7 +66,7 @@ export let logout = (req: Request, res: Response) => {
  * GET /signup
  * Signup page.
  */
-export let getSignup = (req: Request, res: Response) => {
+export const getSignup = (req: Request, res: Response) => {
   if (req.user) {
     return res.redirect("/");
   }
@@ -79,7 +79,7 @@ export let getSignup = (req: Request, res: Response) => {
  * POST /signup
  * Create a new local account.
  */
-export let postSignup = (req: Request, res: Response, next: NextFunction) => {
+export const postSignup = (req: Request, res: Response, next: NextFunction) => {
   req.assert("email", "Email is not valid").isEmail();
   req.assert("password", "Password must be at least 4 characters long").len({ min: 4 });
   req.assert("confirmPassword", "Passwords do not match").equals(req.body.password);
@@ -119,7 +119,7 @@ export let postSignup = (req: Request, res: Response, next: NextFunction) => {
  * GET /account
  * Profile page.
  */
-export let getAccount = (req: Request, res: Response) => {
+export const getAccount = (req: Request, res: Response) => {
   res.render("account/profile", {
     title: "Account Management"
   });
@@ -129,7 +129,7 @@ export let getAccount = (req: Request, res: Response) => {
  * POST /account/profile
  * Update profile information.
  */
-export let postUpdateProfile = (req: Request, res: Response, next: NextFunction) => {
+export const postUpdateProfile = (req: Request, res: Response, next: NextFunction) => {
   req.assert("email", "Please enter a valid email address.").isEmail();
   req.sanitize("email").normalizeEmail({ gmail_remove_dots: false });
 
@@ -165,7 +165,7 @@ export let postUpdateProfile = (req: Request, res: Response, next: NextFunction)
  * POST /account/password
  * Update current password.
  */
-export let postUpdatePassword = (req: Request, res: Response, next: NextFunction) => {
+export const postUpdatePassword = (req: Request, res: Response, next: NextFunction) => {
   req.assert("password", "Password must be at least 4 characters long").len({ min: 4 });
   req.assert("confirmPassword", "Passwords do not match").equals(req.body.password);
 
@@ -191,7 +191,7 @@ export let postUpdatePassword = (req: Request, res: Response, next: NextFunction
  * POST /account/delete
  * Delete user account.
  */
-export let postDeleteAccount = (req: Request, res: Response, next: NextFunction) => {
+export const postDeleteAccount = (req: Request, res: Response, next: NextFunction) => {
   User.remove({ _id: req.user.id }, (err) => {
     if (err) { return next(err); }
     req.logout();
@@ -204,7 +204,7 @@ export let postDeleteAccount = (req: Request, res: Response, next: NextFunction)
  * GET /account/unlink/:provider
  * Unlink OAuth provider.
  */
-export let getOauthUnlink = (req: Request, res: Response, next: NextFunction) => {
+export const getOauthUnlink = (req: Request, res: Response, next: NextFunction) => {
   const provider = req.params.provider;
   User.findById(req.user.id, (err, user: any) => {
     if (err) { return next(err); }
@@ -222,7 +222,7 @@ export let getOauthUnlink = (req: Request, res: Response, next: NextFunction) =>
  * GET /reset/:token
  * Reset Password page.
  */
-export let getReset = (req: Request, res: Response, next: NextFunction) => {
+export const getReset = (req: Request, res: Response, next: NextFunction) => {
   if (req.isAuthenticated()) {
     return res.redirect("/");
   }
@@ -245,7 +245,7 @@ export let getReset = (req: Request, res: Response, next: NextFunction) => {
  * POST /reset/:token
  * Process the reset password request.
  */
-export let postReset = (req: Request, res: Response, next: NextFunction) => {
+export const postReset = (req: Request, res: Response, next: NextFunction) => {
   req.assert("password", "Password must be at least 4 characters long.").len({ min: 4 });
   req.assert("confirm", "Passwords must match.").equals(req.body.password);
 
@@ -307,7 +307,7 @@ export let postReset = (req: Request, res: Response, next: NextFunction) => {
  * GET /forgot
  * Forgot Password page.
  */
-export let getForgot = (req: Request, res: Response) => {
+export const getForgot = (req: Request, res: Response) => {
   if (req.isAuthenticated()) {
     return res.redirect("/");
   }
@@ -320,7 +320,7 @@ export let getForgot = (req: Request, res: Response) => {
  * POST /forgot
  * Create a random token, then the send user an email with a reset link.
  */
-export let postForgot = (req: Request, res: Response, next: NextFunction) => {
+export const postForgot = (req: Request, res: Response, next: NextFunction) => {
   req.assert("email", "Please enter a valid email address.").isEmail();
   req.sanitize("email").normalizeEmail({ gmail_remove_dots: false });