Make new Frontend with NextJS, with Auth

+This is a [Next.js](https://nextjs.org/) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app).
+
+## Getting Started
+
+First, run the development server:
+
+```bash
+npm run dev
+# or
+yarn dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
+
+You can start editing the page by modifying `pages/index.js`. The page auto-updates as you edit the file.
+
+[API routes](https://nextjs.org/docs/api-routes/introduction) can be accessed on [http://localhost:3000/api/hello](http://localhost:3000/api/hello). This endpoint can be edited in `pages/api/hello.js`.
+
+The `pages/api` directory is mapped to `/api/*`. Files in this directory are treated as [API routes](https://nextjs.org/docs/api-routes/introduction) instead of React pages.
+
+## Learn More
+
+To learn more about Next.js, take a look at the following resources:
+
+- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
+- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
+
+You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js/) - your feedback and contributions are welcome!
+
+## Deploy on Vercel
+
+The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
+
+Check out our [Next.js deployment documentation](https://nextjs.org/docs/deployment) for more details.

+module.exports = {
+  reactStrictMode: true,
+}

 {
 {
-  "name": "learn_with_code",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
+  "name": "learn-in-web",
+  "private": true,
   "scripts": {
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
-    "start": "npm run build:live",
-    "build": "tsc -p .",
-    "build:live": "nodemon --watch 'src/**/*.ts' --exec \"ts-node\" src/index.ts"
-  },
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
-  "devDependencies": {
-    "@types/express": "^4.17.13",
-    "@types/node": "^16.11.6",
-    "nodemon": "^2.0.14",
-    "ts-node": "^10.4.0",
-    "typescript": "^4.4.4"
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
   },
   },
   "dependencies": {
   "dependencies": {
-    "express": "^4.17.1"
+    "@heroicons/react": "^1.0.5",
+    "axios": "^0.24.0",
+    "next": "12.0.4",
+    "next-auth": "^3.29.0",
+    "react": "17.0.2",
+    "react-dom": "17.0.2",
+    "semantic-ui-react": "^2.0.4",
+    "swr": "^1.0.1"
+  },
+  "devDependencies": {
+    "autoprefixer": "^10.4.0",
+    "eslint": "7.32.0",
+    "eslint-config-next": "12.0.4",
+    "postcss": "^8.3.11",
+    "tailwindcss": "^2.2.19"
   }
   }
 }
 }

+module.exports = {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}

+<svg width="283" height="64" viewBox="0 0 283 64" fill="none" 
+    xmlns="http://www.w3.org/2000/svg">
+    <path d="M141.04 16c-11.04 0-19 7.2-19 18s8.96 18 20 18c6.67 0 12.55-2.64 16.19-7.09l-7.65-4.42c-2.02 2.21-5.09 3.5-8.54 3.5-4.79 0-8.86-2.5-10.37-6.5h28.02c.22-1.12.35-2.28.35-3.5 0-10.79-7.96-17.99-19-17.99zm-9.46 14.5c1.25-3.99 4.67-6.5 9.45-6.5 4.79 0 8.21 2.51 9.45 6.5h-18.9zM248.72 16c-11.04 0-19 7.2-19 18s8.96 18 20 18c6.67 0 12.55-2.64 16.19-7.09l-7.65-4.42c-2.02 2.21-5.09 3.5-8.54 3.5-4.79 0-8.86-2.5-10.37-6.5h28.02c.22-1.12.35-2.28.35-3.5 0-10.79-7.96-17.99-19-17.99zm-9.45 14.5c1.25-3.99 4.67-6.5 9.45-6.5 4.79 0 8.21 2.51 9.45 6.5h-18.9zM200.24 34c0 6 3.92 10 10 10 4.12 0 7.21-1.87 8.8-4.92l7.68 4.43c-3.18 5.3-9.14 8.49-16.48 8.49-11.05 0-19-7.2-19-18s7.96-18 19-18c7.34 0 13.29 3.19 16.48 8.49l-7.68 4.43c-1.59-3.05-4.68-4.92-8.8-4.92-6.07 0-10 4-10 10zm82.48-29v46h-9V5h9zM36.95 0L73.9 64H0L36.95 0zm92.38 5l-27.71 48L73.91 5H84.3l17.32 30 17.32-30h10.39zm58.91 12v9.69c-1-.29-2.06-.49-3.2-.49-5.81 0-10 4-10 10V51h-9V17h9v9.2c0-5.08 5.91-9.2 13.2-9.2z" fill="#000"/>
+</svg>
\ No newline at end of file

+import { useSession } from 'next-auth/client';
+import axios from 'axios';
+import { SERVER_BASE_URL } from '..';
+
+// login request to the server with axios and next-auth
+export const login = async (email, password) => {
+    const response = await axios.post(`${SERVER_BASE_URL}/auth/signin` , {
+        email,
+        password,
+    });
+    if (response.status !== 200 && response.status !== 201) {
+        throw new Error('Login failed!');
+    }
+    console.log(response.data.access_token)
+    useSession.accessToken = response.data.access_token;
+    return response.data;
+}
+
+export const signup = async (name, email, password) => {
+    const response = await axios.post(`${SERVER_BASE_URL}/auth/signup`, {
+        name,
+        email,
+        password,
+    });
+    if (response.status !== 200 && response.status !== 201) {
+        throw new Error('Signup failed!');
+    }
+    useSession.accessToken = response.data.access_token;
+    return response.data;
+}
+
+export const logout = async () => {1
+    useSession.accessToken = null;
+    return true;
+}
+
+export const getUser = async () => {
+    const response = await axios.get(`${SERVER_BASE_URL}/auth/validate`, {
+        token: useSession.accessToken,
+    });
+    if (response.status !== 200 && response.status !== 201) {
+        throw new Error('Failed to get user!');
+    }
+    return response.data;
+}
+
+export const refreshToken = async () => {
+    const response = await axios.post(`${SERVER_BASE_URL}/auth/refresh`, {
+        token: useSession.accessToken,
+    });
+    if (response.status !== 200 && response.status !== 201) {
+        throw new Error('Failed to refresh token!');
+    }
+    useSession.accessToken = response.data.access_token;
+    return response.data;
+}
+
+export const validateToken = async () => {
+    const response = await axios.post(`${SERVER_BASE_URL}/auth/validate`, {
+        token: useSession.accessToken,
+    });
+    if (response.status !== 200 && response.status !== 201) {
+        return false;
+    }
+    return true;
+}
+
+export const getToken = () => {
+    return useSession.accessToken;
+}
\ No newline at end of file

+export * from './auth'; 
\ No newline at end of file

+export const SERVER_BASE_URL = 'http://localhost:4000';
\ No newline at end of file

+export * from './post'
\ No newline at end of file

+import auth from '../auth'
+import axios from 'axios';
+import { SERVER_BASE_URL } from '..';
+
+export const newPost = async (title, content, privat) => {
+    if (!auth.validateToken()) {
+        throw new Error("plz login");
+    }
+    const response = await axios.post(`${SERVER_BASE_URL}/post/new`, {
+        token: auth.getToken(),
+        title,
+        content,
+        privat,
+    });
+    if (response.status !== 200) {
+        throw new Error('Failed to create new post!');
+    }
+    return response.data;
+}
+
+export const getPostbyId = async (id) => {
+    const response = await axios.get(`${SERVERBASE_URL}/post/${id}`);
+    if (response.status !== 200) {
+        throw new Error('Failed to get post!');
+    }
+    return response.data;
+}
\ No newline at end of file

+function Footer() {
+    return (
+        <div>Copyright @ SungJin. All right reserved.</div>
+    )
+}
+
+export default Footer
\ No newline at end of file

+import {
+    HomeIcon,
+    SearchIcon,
+    UserIcon,
+    CubeIcon,
+    MailIcon,
+    StarIcon
+} from "@heroicons/react/outline"
+import { useSession } from "next-auth/client"
+import HeaderItem from "./HeaderItem"
+import Islogin from "./islogin"
+import Link from "next/link"
+
+function Header() {
+    return (
+        <header className="flex flex-col sm:flex-row m-5 justify-between items-center">
+            <Link href="/" passHref>
+                <div className="flex cursor-pointer transform hover:scale-105">
+                    <CubeIcon className="h-20" />
+                    <p className="text-7xl font-extrabold" >Learn In Web</p>
+                </div></Link>
+            <div className="flex flex-grow justify-evenly max-w-sm">
+                <HeaderItem title='HOME' Icon={HomeIcon} />
+                <HeaderItem title='STAR' Icon={StarIcon} />
+                <HeaderItem title='SEARCH' Icon={SearchIcon} />
+                <HeaderItem title='ACCOUNT' Icon={UserIcon} />
+            </div>
+            <Islogin />
+        </header>
+
+    )
+}
+
+export default Header
\ No newline at end of file

+function HeaderItem({ Icon, title }) {
+    return (
+        <div className="flex flex-col items-center cursor-pointer group w-12 sm:w-20 hover:text-white">
+            <Icon className="h-8 mb-1 group-hover:animate-bounce"/>
+            <p className="opacity-0 group-hover:opacity-100 tracking-widest">{title}</p>
+        </div>
+    )
+}
+
+export default HeaderItem
\ No newline at end of file

+import router from "next/router"
+
+export default function Nav() {
+    return (
+        <nav className="navbar">
+            <div className="flex px-10 sm:px-20 text-2xl whitespace-nowrap
+            space-x-10 sm:space-x-20">
+                <a herf="" className="last:pr-24 cursor-pointer transition 
+                        duration-100 transform hover:scale-125 hover:text-white 
+                        active:text-blue-500">난이도 하</a>
+                <a herf="" className="last:pr-24 cursor-pointer transition 
+                        duration-100 transform hover:scale-125 hover:text-white 
+                        active:text-blue-500">난이도 중</a>
+                <a herf="" className="last:pr-24 cursor-pointer transition 
+                        duration-100 transform hover:scale-125 hover:text-white 
+                        active:text-blue-500">난이도 상</a>
+                <a herf="" className="last:pr-24 cursor-pointer transition 
+                        duration-100 transform hover:scale-125 hover:text-white 
+                        active:text-blue-500">북마크</a>
+            </div>
+        </nav>
+    )
+}
\ No newline at end of file

+import { useSession } from "next-auth/client"
+import Link from "next/link"
+
+function Islogin() {
+    if (useSession.accessToken) {
+        return (
+            <LogoutRedirect />
+        )
+    } else {
+        return (
+            <LoginRedirect />
+        )
+    }
+}
+
+function LogoutRedirect() {
+    return (
+        <div>
+            <Link href="/logout"><a className="flex flex-grow justify-evenly">로그아웃</a></Link>
+        </div>
+    )
+}
+
+function LoginRedirect () {
+    return (
+        <div>
+            <Link href="/login"><a className="flex flex-grow justify-evenly">로그인</a></Link>
+            <Link href="/signup"><a className="flex flex-grow justify-evenly">회원가입</a></Link>
+        </div>
+    )
+}
+
+
+
+export default Islogin
\ No newline at end of file

-const _PORT = 3000;
-
-import * as express from "express";
-import {Runner} from "./runner";
-
-const app = express.default();
-
-app.use(express.json());
-
-/*RESTful API*/
-
-app.post("/runcode", function (req, res) {
-  var run = new Runner(req);
-  run.run();
-  res.send(run.output);
-});
-
-
-
-app.listen(_PORT, () => {
-  console.log("server started at port " + _PORT);
-});

+import '../styles/globals.css'
+import Header from '../components/Header'
+import Nav from '../components/Nav'
+import Footer from '../components/Footer'
+
+function MyApp({ Component, pageProps }) {
+  return (
+    <div>
+      <Header />
+      <Nav />
+      <Component {...pageProps} />
+      <Footer />
+    </div>
+  )
+}
+
+export default MyApp

+// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
+
+export default function handler(req, res) {
+  res.status(200).json({ name: 'John Doe' })
+}

+import {Header} from 'semantic-ui-react'
+import Head from 'next/head'
+
+export default function Home() {
+  return (
+    <div className=''>
+      <Head>
+        <title>Learn In Web</title>
+        <meta name="description" content="Generated by create next app" />
+        <link rel="icon" href="/favicon.ico" />
+      </Head>
+      {/* 기본 컨텐츠 */}
+      <Header as='h3' textAlign='center'>인기 문제</Header>
+      
+    </div>
+  )
+}
\ No newline at end of file

+import { useRouter } from "next/router";
+import * as auth from "../api/auth";
+
+export default function Login() {
+    const router = useRouter();
+
+    return (
+        <div>
+            <h1>Login</h1>
+            <form onSubmit={handleSubmit}>
+                <label htmlFor="email">Email</label>
+                <input type="email" id="email" />
+                <label htmlFor="password">Password</label>
+                <input type="password" id="password" />
+                <button type="submit">Login</button>
+            </form>
+        </div>
+    );
+
+    async function handleSubmit(event) {
+        event.preventDefault();
+        const form = event.target;
+        const email = form.email.value;
+        const password = form.password.value;
+        const login = await auth.login(email, password);
+        if(!login) {
+            alert("Login failed");
+        }
+        return router.push("/");
+    }
+}
+

+import { useRouter } from "next/dist/client/router"
+import { getPostbyId } from "../../api/post"
+
+
+export default function Post() {
+    const router = useRouter()
+    const { id } = router.query
+    const post = getPostbyId(id)
+    return (
+        <div>
+            <p>{post.title}</p>
+            <p>{post.body}</p>
+        </div>
+    )
+}
\ No newline at end of file

+import * as auth from "../api/auth";
+import push from "next/router";
+
+export default function Signup() {
+    return (
+        <div>
+            <h1>Signup</h1>
+            <form onSubmit={handleSubmit}>
+                <label htmlFor="name">Name</label>
+                <input type="text" id="name" />
+                <label htmlFor="email">Email</label>
+                <input type="email" id="email" />
+                <label htmlFor="password">Password</label>
+                <input type="password" id="password" />
+                <button type="submit">Signup</button>
+            </form>
+        </div>
+    );
+}
+
+function handleSubmit(event) {
+    event.preventDefault();
+    const form = event.target;
+    const name = form.name.value;
+    const email = form.email.value;
+    const password = form.password.value;
+    console.log(name, email, password);
+    const signup = auth.signup(name, email, password);
+    if(!signup) {
+        alert("Signup failed");
+    }
+    return push("/");
+}
\ No newline at end of file

-import * as child_process from "child_process";
-import * as fs from "fs";
-
-export class Runner {
-  type: string;
-  input: Array<string>;
-  output: Array<string> = [];
-  time: Date = new Date();
-  constructor(req: any) {
-    this.type = req.body.type;
-    this.input = req.body.input;
-    fs.writeFileSync("tmp." + this.type, req.body.code);
-  }
-  run() {
-    switch (this.type) {
-      case "c": {
-        this.c();
-      }
-      case "c++": {
-        this.cpp();
-      }
-      case "js": {
-        this.js();
-      }
-      case "go": {
-        this.go();
-      }
-      case "ts": {
-        this.ts();
-      }
-    }
-  }
-  c() {
-    if ((this.input = [])) {
-      const test = child_process.spawnSync("gcc", ["~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(test.stderr);
-      const result = child_process.spawnSync("~/OSS/main/a.out", {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(result.stdout);
-      this.output.push(fix(result.stdout));
-    }
-    for (let ip of this.input) {
-      const test = child_process.spawnSync("gcc", ["~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(test.stderr);
-      const result = child_process.spawnSync("~/OSS/main/a.out", {
-        encoding: "utf8",
-        shell: true,
-        input: ip,
-      });
-      console.log(result.stdout);
-      this.output.push(fix(result.stdout));
-    }
-  }
-  cpp() {
-    if (this.input = []) {
-      const test = child_process.spawnSync("gcc", ["~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(test.stderr);
-      const result = child_process.spawnSync("~/OSS/main/a.out", {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(result.stdout);
-      this.output.push(fix(result.stdout));
-    }
-    for (let ip of this.input) {
-      const test = child_process.spawnSync("gcc", ["~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(test.stderr);
-      const result = child_process.spawnSync("~/OSS/main/a.out", {
-        encoding: "utf8",
-        shell: true,
-        input: ip,
-      });
-      console.log(result.stdout);
-      this.output.push(fix(result.stdout));
-    }
-  }
-  js() {
-    if (this.input = []) {
-      const test = child_process.spawnSync("node", ["~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(test.stdout);
-      this.output.push(fix(test.stdout));
-    }
-    for (let ip of this.input) {
-      const test = child_process.spawnSync("node", ["~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-        input: ip,
-      });
-      console.log(test.stdout);
-      this.output.push(fix(test.stdout));
-    }
-  }
-  go() {
-    if (this.input = []) {
-      const test = child_process.spawnSync("go", ["run", "~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(test.stdout);
-      this.output.push(fix(test.stdout));
-    }
-    for (let ip of this.input) {
-      const test = child_process.spawnSync("go", ["run", "~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-        input: ip,
-      });
-      console.log(test.stdout);
-      this.output.push(fix(test.stdout));
-    }
-  }
-  ts() {
-    if (this.input = []) {
-      const test = child_process.spawnSync("ts-node", ["run", "~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-      });
-      console.log(test.stdout);
-      this.output.push(fix(test.stdout));
-    }
-    for (let ip of this.input) {
-      const test = child_process.spawnSync("ts-node", ["run", "~/OSS/main/tmp.c"], {
-        encoding: "utf8",
-        shell: true,
-        input: ip,
-      });
-      console.log(test.stdout);
-      this.output.push(fix(test.stdout));
-    }
-  }
-}
-
-const fix = (a: any): string => {
-  if (typeof a === "string") {
-    return a;
-  }
-  return "";
-};

+.container {
+  padding: 0 2rem;
+}
+
+.main {
+  min-height: 100vh;
+  padding: 4rem 0;
+  flex: 1;
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+}
+
+.footer {
+  display: flex;
+  flex: 1;
+  padding: 2rem 0;
+  border-top: 1px solid #eaeaea;
+  justify-content: center;
+  align-items: center;
+}
+
+.footer a {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  flex-grow: 1;
+}
+
+.title a {
+  color: #0070f3;
+  text-decoration: none;
+}
+
+.title a:hover,
+.title a:focus,
+.title a:active {
+  text-decoration: underline;
+}
+
+.title {
+  margin: 0;
+  line-height: 1.15;
+  font-size: 4rem;
+}
+
+.title,
+.description {
+  text-align: center;
+}
+
+.description {
+  margin: 4rem 0;
+  line-height: 1.5;
+  font-size: 1.5rem;
+}
+
+.code {
+  background: #fafafa;
+  border-radius: 5px;
+  padding: 0.75rem;
+  font-size: 1.1rem;
+  font-family: Menlo, Monaco, Lucida Console, Liberation Mono, DejaVu Sans Mono,
+    Bitstream Vera Sans Mono, Courier New, monospace;
+}
+
+.grid {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  flex-wrap: wrap;
+  max-width: 800px;
+}
+
+.card {
+  margin: 1rem;
+  padding: 1.5rem;
+  text-align: left;
+  color: inherit;
+  text-decoration: none;
+  border: 1px solid #eaeaea;
+  border-radius: 10px;
+  transition: color 0.15s ease, border-color 0.15s ease;
+  max-width: 300px;
+}
+
+.card:hover,
+.card:focus,
+.card:active {
+  color: #0070f3;
+  border-color: #0070f3;
+}
+
+.card h2 {
+  margin: 0 0 1rem 0;
+  font-size: 1.5rem;
+}
+
+.card p {
+  margin: 0;
+  font-size: 1.25rem;
+  line-height: 1.5;
+}
+
+.logo {
+  height: 1em;
+  margin-left: 0.5rem;
+}
+
+@media (max-width: 600px) {
+  .grid {
+    width: 100%;
+    flex-direction: column;
+  }
+}

+@tailwind base;
+@tailwind components;
+@tailwind utilities;
+
+@layer base {
+  body {
+      @apply bg-[#06202A] text-gray-300
+  }
+}
+
+html,
+body {
+  padding: 0;
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Oxygen,
+    Ubuntu, Cantarell, Fira Sans, Droid Sans, Helvetica Neue, sans-serif;
+}
+
+a {
+  color: inherit;
+  text-decoration: none;
+}
+
+* {
+  box-sizing: border-box;
+}

+module.exports = {
+  mode: 'jit',
+  purge: ['./src/**/*.{js,ts,jsx,tsx}'],
+  darkMode: false, // or 'media' or 'class'
+  theme: {
+    extend: {},
+  },
+  variants: {
+    extend: {},
+  },
+  plugins: [],
+}

-{
-  "compilerOptions": {
-    /* Visit https://aka.ms/tsconfig.json to read more about this file */
-
-    /* Projects */
-    // "incremental": true,                              /* Enable incremental compilation */
-    // "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
-    // "tsBuildInfoFile": "./",                          /* Specify the folder for .tsbuildinfo incremental compilation files. */
-    // "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects */
-    // "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
-    // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
-
-    /* Language and Environment */
-    "target": "es5",                                     /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
-    "lib": ["es6","dom"],                                /* Specify a set of bundled library declaration files that describe the target runtime environment. */
-    // "jsx": "preserve",                                /* Specify what JSX code is generated. */
-    // "experimentalDecorators": true,                   /* Enable experimental support for TC39 stage 2 draft decorators. */
-    // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
-    // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h' */
-    // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
-    // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using `jsx: react-jsx*`.` */
-    // "reactNamespace": "",                             /* Specify the object invoked for `createElement`. This only applies when targeting `react` JSX emit. */
-    // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
-    // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
-
-    /* Modules */
-    "module": "commonjs",                                /* Specify what module code is generated. */
-    "rootDir": "src",                                    /* Specify the root folder within your source files. */
-    "moduleResolution": "node",                       /* Specify how TypeScript looks up a file from a given module specifier. */
-    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
-    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
-    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
-    // "typeRoots": [],                                  /* Specify multiple folders that act like `./node_modules/@types`. */
-    // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
-    // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
-    "resolveJsonModule": true,                           /* Enable importing .json files */
-    // "noResolve": true,                                /* Disallow `import`s, `require`s or `<reference>`s from expanding the number of files TypeScript should add to a project. */
-
-    /* JavaScript Support */
-    // "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the `checkJS` option to get errors from these files. */
-    // "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
-    // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from `node_modules`. Only applicable with `allowJs`. */
-
-    /* Emit */
-    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
-    // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
-    // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
-    // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
-    // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If `declaration` is true, also designates a file that bundles all .d.ts output. */
-    "outDir": "lib",                                     /* Specify an output folder for all emitted files. */
-    // "removeComments": true,                           /* Disable emitting comments. */
-    // "noEmit": true,                                   /* Disable emitting files from a compilation. */
-    // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
-    // "importsNotUsedAsValues": "remove",               /* Specify emit/checking behavior for imports that are only used for types */
-    // "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
-    // "sourceRoot": "",                                 /* Specify the root path for debuggers to find the reference source code. */
-    // "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
-    // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
-    // "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
-    // "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
-    // "newLine": "crlf",                                /* Set the newline character for emitting files. */
-    // "stripInternal": true,                            /* Disable emitting declarations that have `@internal` in their JSDoc comments. */
-    // "noEmitHelpers": true,                            /* Disable generating custom helper functions like `__extends` in compiled output. */
-    // "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
-    // "preserveConstEnums": true,                       /* Disable erasing `const enum` declarations in generated code. */
-    // "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
-
-    /* Interop Constraints */
-    // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
-    // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
-    "esModuleInterop": true,                             /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables `allowSyntheticDefaultImports` for type compatibility. */
-    // "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
-    "forceConsistentCasingInFileNames": true,            /* Ensure that casing is correct in imports. */
-
-    /* Type Checking */
-    "strict": true,                                      /* Enable all strict type-checking options. */
-    // "noImplicitAny": true,                            /* Enable error reporting for expressions and declarations with an implied `any` type.. */
-    // "strictNullChecks": true,                         /* When type checking, take into account `null` and `undefined`. */
-    // "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
-    // "strictBindCallApply": true,                      /* Check that the arguments for `bind`, `call`, and `apply` methods match the original function. */
-    // "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
-    // "noImplicitThis": true,                           /* Enable error reporting when `this` is given the type `any`. */
-    // "useUnknownInCatchVariables": true,               /* Type catch clause variables as 'unknown' instead of 'any'. */
-    // "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
-    // "noUnusedLocals": true,                           /* Enable error reporting when a local variables aren't read. */
-    // "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read */
-    // "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
-    // "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
-    // "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
-    // "noUncheckedIndexedAccess": true,                 /* Include 'undefined' in index signature results */
-    // "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
-    // "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type */
-    // "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
-    // "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
-
-    /* Completeness */
-    // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
-    "skipLibCheck": true                                 /* Skip type checking all .d.ts files. */
-  }
-}

-<!DOCTYPE html>
-<html>
-  <head>
-    <link rel="stylesheet" href="css/style.css" />
-  </head>
-  <body>
-    <div class="wrapper">
-      <div class="header">Code in Web</div>
-      <h1>My First Heading</h1>
-      <p>My first paragraph.</p>
-    </div>
-  </body>
-</html>