[React]~Ambassador画面4:ヘッダーコンポーネントの実装~

こんにちは、KOUKIです。

今回は、ヘッダーコンポーネントの実装をします。

尚、「React, NextJS and Golang: A Rapid Guide – Advanced」コースを参考にしています。解釈は私が勝手に付けているので、本物をみたい場合は受講をお勧めします!

[React/NextJS]~画面開発まとめ~

<目次>

前回

前回は、ナビゲーションの実装を行いました。

[React]~Ambassador画面3:ナビゲーションの実装~

事前準備

ファイル

touch react-ambassador/src/pages/Profile.tsx

1	touch react-ambassador/src/pages/Profile.tsx

ヘッダーコンポーネントの変更

まずは、以前作成したHeader.tsxに実装しているヘッダーコンポーネントのコンテンツを変えてみましょう。

// components/Header.tsx
import { useState } from 'react'
import { Link } from 'react-router-dom'

const Header = () => {
  const [title, setTitle] = useState('Welcome')
  const [description, setDescription] = useState('Share links to earn money')

	return (
		<section className="py-5 text-center container">
          <div className="row py-lg-5">
            <div className="col-lg-6 col-md-8 mx-auto">
              <h1 className="fw-light">{title}</h1>
              <p className="lead text-muted">{description}</p>
              <p>
                <Link to={'/login'} className="btn btn-primary my-2">Login</Link>
                <Link to={'/register'} className="btn btn-secondary my-2">Register</Link>
              </p>
            </div>
          </div>
        </section>
	)
}

export default Header

// components/Header.tsx

import { useState } from 'react'

import { Link } from 'react-router-dom'

const Header = () => {

const [title, setTitle] = useState('Welcome')

const [description, setDescription] = useState('Share links to earn money')

return (

<h1 className="fw-light">{title}</h1>

<p className="lead text-muted">{description}</p>

<p>

<Link to={'/login'} className="btn btn-primary my-2">Login</Link>

<Link to={'/register'} className="btn btn-secondary my-2">Register</Link>

</p>

</div>

</section>

)

}

export default Header

Redux Storeへ接続

ヘッダーコンポーネントもRedux Storeへ接続し、Stateの値を取得できるようにしましょう。

// components/Header.tsx
...
import { User } from '../models/user'
import { connect } from 'react-redux'

// propsを渡せるようにする
const Header = (props: {user: User}) => {
 ...
}

// Redux Storeへ接続
export default connect(
	(state: {user: User}) => ({
		user: state.user
	})
)(Header)

// components/Header.tsx

...

import { User } from '../models/user'

import { connect } from 'react-redux'

// propsを渡せるようにする

const Header = (props: {user: User}) => {

...

}

// Redux Storeへ接続

export default connect(

(state: {user: User}) => ({

user: state.user

})

)(Header)

表示の切り替え

ナビゲーションの時と同様に、ログイン済みの場合は、ユーザー情報を表示するようにします。

// components/Header.tsx
import { useEffect, useState } from 'react'
...

const Header = (props: {user: User}) => {
  const [title, setTitle] = useState('Welcome')
  const [description, setDescription] = useState('Share links to earn money')

  useEffect(() => {
    if (props.user?.id) {
      setTitle(`$${props.user.revenue}`)
      setDescription('You have earned this far')
    } else {
      setTitle('Welcome')
      setDescription('Share links to earn money')
    }
  }, [props.user])

  let buttons;
  if (!props.user?.id) {
    buttons = (
      <p>
        <Link to={'/login'} className="btn btn-primary my-2">Login</Link>
        <Link to={'/register'} className="btn btn-secondary my-2">Register</Link>
      </p>
    )
  }

	return (
		<section className="py-5 text-center container">
          <div className="row py-lg-5">
            <div className="col-lg-6 col-md-8 mx-auto">
              <h1 className="fw-light">{title}</h1>
              <p className="lead text-muted">{description}</p>
              {buttons}
            </div>
          </div>
        </section>
	)
}
...

// components/Header.tsx

import { useEffect, useState } from 'react'

...

const Header = (props: {user: User}) => {

const [title, setTitle] = useState('Welcome')

const [description, setDescription] = useState('Share links to earn money')

useEffect(() => {

if (props.user?.id) {

setTitle(`$${props.user.revenue}`)

setDescription('You have earned this far')

} else {

setTitle('Welcome')

setDescription('Share links to earn money')

}

}, [props.user])

let buttons;

if (!props.user?.id) {

buttons = (

<p>

<Link to={'/login'} className="btn btn-primary my-2">Login</Link>

<Link to={'/register'} className="btn btn-secondary my-2">Register</Link>

</p>

)

}

return (

<h1 className="fw-light">{title}</h1>

<p className="lead text-muted">{description}</p>

{buttons}

</div>

</section>

)

}

...

Userモデルに、revenueを追加します。

// models/user.ts

export class User {
...
	revenue?: number // 追加
}

// models/user.ts

export class User {

...

revenue?: number // 追加

}

また、現状ログアウトするとログインページに遷移してしまうので、前回作成したナビゲーションからリダイレクト処理を削除し、ユーザー情報を設定する処理を追加します。

// components/Nav.tsx
import { Dispatch } from 'react'
import { connect } from 'react-redux'
import { User } from '../models/user'
import { Link } from 'react-router-dom'
import axios from 'axios'
import { setUserAction } from '../redux/actions/setUserAction'

// propsをanyへ変更
const Nav = (props: any) => {
	// const [redirect, setRedirect] = useState(false)

	const logout = async () => {
		await axios.post('logout')
		// setRedirect(true)
		props.setUser(null) // ユーザをセット
	}

	// if (redirect) {
	// 	return <Redirect to={'/login'} />
	// }

	let menu

	if (props.user?.id) {
...
		)
	} else {
...
	}


	return (
	...
	)
}

export default connect(
	(state: {user: User}) => ({
		user: state.user
	}),
// dispatchを追加
  (dispatch: Dispatch<any>) => ({
    setUser: (user: User) => dispatch(setUserAction(user))
  })
)(Nav)

// components/Nav.tsx

import { Dispatch } from 'react'

import { connect } from 'react-redux'

import { User } from '../models/user'

import { Link } from 'react-router-dom'

import axios from 'axios'

import { setUserAction } from '../redux/actions/setUserAction'

// propsをanyへ変更

const Nav = (props: any) => {

// const [redirect, setRedirect] = useState(false)

const logout = async () => {

await axios.post('logout')

// setRedirect(true)

props.setUser(null) // ユーザをセット

}

// if (redirect) {

// return <Redirect to={'/login'} />

// }

let menu

if (props.user?.id) {

...

)

} else {

...

}

return (

...

)

}

export default connect(

(state: {user: User}) => ({

user: state.user

}),

// dispatchを追加

(dispatch: Dispatch<any>) => ({

setUser: (user: User) => dispatch(setUserAction(user))

})

)(Nav)

プロファイルページの作成

プロファイルページを作成していなかったので、この機会に作成しましょう。

// pages/Profile.tsx
import { Dispatch, SyntheticEvent, useEffect, useState } from 'react'
import { connect } from 'react-redux'
import { User } from '../models/user'
import { setUserAction } from '../redux/actions/setUserAction'
import Layout from '../components/Layout'
import axios from 'axios'

// Props追加
const Profile = (props: any) => {
	const [first_name, setFirstName] = useState("")
	const [last_name, setLastName] = useState("")
	const [email, setEmail] = useState("")
	const [password, setPassword] = useState("")
	const [password_confirm, setPasswordConfirm] = useState("")

	const userInfo = 'users/info'
	const userPassword = 'users/password'

	// propsからデータを設定するのでAPIからデータを取得する必要はなくなる
	useEffect(() => {
		console.log(props.user)
		setFirstName(props.user.first_name)
		setLastName(props.user.last_name)
		setEmail(props.user.email)
	}, [props.user]) // propsを渡す

	const infoSubmit = async(e: SyntheticEvent) => {
		e.preventDefault()

		const { data } = await axios.put(userInfo, {
			first_name,
			last_name,
			email
		})

		// dispatchを実行
		props.setUser(data)
	}

	const passwordSubmit = async(e: SyntheticEvent) => {
		e.preventDefault()

		await axios.put(userPassword, {
			password,
			password_confirm
		})
	}

	return (
		<Layout>
			<h3>Account Information</h3>
			<form onSubmit={infoSubmit}>
				<div className="mb-3">
					<label>First Name</label>
					<input
						className="form-control"
						defaultValue={first_name}
						onChange={e => setFirstName(e.target.value)}
					/>
				</div>
				<div className="mb-3">
					<label>Last Name</label>
					<input
						className="form-control"
						defaultValue={last_name}
						onChange={e => setLastName(e.target.value)}
					/>
				</div>
				<div className="mb-3">
					<label>Email</label>
					<input
						className="form-control"
						defaultValue={email}
						onChange={e => setEmail(e.target.value)}
					/>
				</div>
				<button
					className="btn btn-outline-secondary"
					type="submit">
						Submit
				</button>
			</form>

			<h3 className="mt-4">Change Password</h3>
			<form onSubmit={passwordSubmit}>
				<div className="mb-3">
					<label>Password</label>
					<input
						className="form-control"
						onChange={e => setPassword(e.target.value)}
					/>
				</div>
				<div className="mb-3">
					<label>Password Confirm</label>
					<input
						className="form-control"
						onChange={e => setPasswordConfirm(e.target.value)}
					/>
				</div>
				<button
					className="btn btn-outline-secondary"
					type="submit">
						Submit
				</button>
			</form>
		</Layout>
	)
}

export default connect( (state: {user: User}) => ({
		user: state.user
	}),
	// dispatchを追加
	(dispatch: Dispatch<any>) => ({
		setUser: (user: User) => dispatch(setUserAction(user))
	})
)(Profile)

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// pages/Profile.tsx

import { Dispatch, SyntheticEvent, useEffect, useState } from 'react'

import { connect } from 'react-redux'

import { User } from '../models/user'

import { setUserAction } from '../redux/actions/setUserAction'

import Layout from '../components/Layout'

import axios from 'axios'

// Props追加

const Profile = (props: any) => {

const [first_name, setFirstName] = useState("")

const [last_name, setLastName] = useState("")

const [email, setEmail] = useState("")

const [password, setPassword] = useState("")

const [password_confirm, setPasswordConfirm] = useState("")

const userInfo = 'users/info'

const userPassword = 'users/password'

// propsからデータを設定するのでAPIからデータを取得する必要はなくなる

useEffect(() => {

console.log(props.user)

setFirstName(props.user.first_name)

setLastName(props.user.last_name)

setEmail(props.user.email)

}, [props.user]) // propsを渡す

const infoSubmit = async(e: SyntheticEvent) => {

e.preventDefault()

const { data } = await axios.put(userInfo, {

first_name,

last_name,

})

// dispatchを実行

props.setUser(data)

}

const passwordSubmit = async(e: SyntheticEvent) => {

e.preventDefault()

await axios.put(userPassword, {

password,

password_confirm

})

}

return (

<h3>Account Information</h3>

<label>First Name</label>

<input

className="form-control"

defaultValue={first_name}

onChange={e => setFirstName(e.target.value)}

</div>

<input

className="form-control"

defaultValue={last_name}

onChange={e => setLastName(e.target.value)}

</div>

<label>Email</label>

<input

className="form-control"

defaultValue={email}

onChange={e => setEmail(e.target.value)}

</div>

<button

className="btn btn-outline-secondary"

type="submit">

Submit

</button>

</form>

<h3 className="mt-4">Change Password</h3>

<label>Password</label>

<input

className="form-control"

onChange={e => setPassword(e.target.value)}

</div>

<label>Password Confirm</label>

<input

className="form-control"

onChange={e => setPasswordConfirm(e.target.value)}

</div>

<button

className="btn btn-outline-secondary"

type="submit">

Submit

</button>

</form>

</Layout>

)

}

export default connect( (state: {user: User}) => ({

user: state.user

}),

// dispatchを追加

(dispatch: Dispatch<any>) => ({

setUser: (user: User) => dispatch(setUserAction(user))

})

)(Profile)

内容は、Admin画面で実装した時のものとほぼ一緒です。

このページへのルートを設定します。

// App.tsx
...
import Profile from './pages/Profile'

function App() {
  return (
    <BrowserRouter>
...
      <Route path={'/profile'} component={Profile} />
    </BrowserRouter>
  );
}

export default App;

// App.tsx

...

import Profile from './pages/Profile'

function App() {

return (

...

</BrowserRouter>

);

}

export default App;

バグの修正

ページを更新後、「$undefined」になりました。これの修正を行いましょう。

Layout.tsxを修正します。

// components/Layout.tsx
...
import { useLocation } from 'react-router'
...
const Layout = (props: any) => {
...
	const location = useLocation()

	useEffect(() => {
...
	}, [])

  // Header表示/非表示の判定
	let header
	if (location.pathname === '/' || location.pathname === '/backend') {
		header = <Header />
	}

	return (
		<div>
			<Nav />
			<main>
				{header} // 追加
...
	)
}

....

// components/Layout.tsx

...

import { useLocation } from 'react-router'

...

const Layout = (props: any) => {

...

const location = useLocation()

useEffect(() => {

...

}, [])

// Header表示/非表示の判定

let header

if (location.pathname === '/' || location.pathname === '/backend') {

header = <Header />

}

return (

<div>

<Nav />

<main>

{header} // 追加

...

)

}

....

URLがルートかbackend以外の場合は、Headerコンポーネントを非表示にしました。

次回

次回は、StatsとRankingを実装しましょう。

[React]~Ambassador画面5:StatsとRankingの実装~

Reactまとめ

記事

[React/NextJS]~画面開発まとめ~

React~記事まとめ~

参考書籍

[商品価格に関しましては、リンクが作成された時点と現時点で情報が変更されている場合がございます。]

React.js＆Next.js超入門第2版【電子書籍】[ 掌田津耶乃 ]
価格：2970円 (2021/6/26時点)

楽天で購入

ソースコード

Layout.tsx

// components/Layout.tsx
import { Dispatch, useEffect } from 'react'
import { connect } from 'react-redux'
import { User } from '../models/user'
import { setUserAction } from '../redux/actions/setUserAction'
import { useLocation } from 'react-router'
import Nav from './Nav'
import Header from './Header'
import axios from 'axios'

const Layout = (props: any) => {
	const userURL = 'user'
	const location = useLocation()

	useEffect(() => {
		(
			async () => {
				try {
					const { data } = await axios.get(userURL)
					props.setUser(data)
				} catch(e) {
					console.log(e)
				}
			}
		)()
	}, [])

	let header
	if (location.pathname === '/' || location.pathname === '/backend') {
		header = <Header />
	}

	return (
		<div>
			<Nav />
			<main>
				{header}
				<div className="album py-5 bg-light">
					<div className="container">
						{props.children}
					</div>
				</div>
			</main>
		</div>
	)
}

// State
const mapStateToProps = (state: {user: User}) => ({
	user: state.user
})

// Dispatch
const mapDispatchToProps = (dispatch: Dispatch<any>) => ({
	// setUser(Action)->dispatch
	setUser: (user: User) => dispatch(setUserAction(user))
})

// LayoutコンポーネントをRedux Storeに登録
export default connect(mapStateToProps, mapDispatchToProps)(Layout)

// components/Layout.tsx

import { Dispatch, useEffect } from 'react'

import { connect } from 'react-redux'

import { User } from '../models/user'

import { setUserAction } from '../redux/actions/setUserAction'

import { useLocation } from 'react-router'

import Nav from './Nav'

import Header from './Header'

import axios from 'axios'

const Layout = (props: any) => {

const userURL = 'user'

const location = useLocation()

useEffect(() => {

(

async () => {

try {

const { data } = await axios.get(userURL)

props.setUser(data)

} catch(e) {

console.log(e)

}

)()

}, [])

let header

if (location.pathname === '/' || location.pathname === '/backend') {

header = <Header />

}

return (

<div>

<Nav />

<main>

{header}

{props.children}

</div>

</main>

</div>

)

}

// State

const mapStateToProps = (state: {user: User}) => ({

user: state.user

})

// Dispatch

const mapDispatchToProps = (dispatch: Dispatch<any>) => ({

// setUser(Action)->dispatch

setUser: (user: User) => dispatch(setUserAction(user))

})

// LayoutコンポーネントをRedux Storeに登録

export default connect(mapStateToProps, mapDispatchToProps)(Layout)

Nav.tsx

// components/Nav.tsx
import { Dispatch } from 'react'
import { connect } from 'react-redux'
import { User } from '../models/user'
import { Link } from 'react-router-dom'
import axios from 'axios'
import { setUserAction } from '../redux/actions/setUserAction'

const Nav = (props: any) => {
	const logout = async () => {
		await axios.post('logout')
		props.setUser(null)
	}

	let menu

	if (props.user?.id) {
		menu = (
			<div className="col-md-3 text-end">
				<Link to={'/profile'} href="#" className="btn btn-primary">
					{props.user.first_name} {props.user.last_name}
				</Link>
				<a
					href="#" className="btn btn-outline-primary me-2"
					onClick={logout}
				>
					logout
				</a>
			</div>
		)
	} else {
		menu = (
			<div className="col-md-3 text-end">
				<Link to={'/login'} className="btn btn-outline-primary me-2">Login</Link>
				<Link to={'/register'} className="btn btn-primary">Sign-up</Link>
			</div>
		)
	}


	return (
		<div className="container">
			<header className="d-flex flex-wrap align-items-center justify-content-center justify-content-md-between py-3 mb-4 border-bottom">

			<ul className="nav col-12 col-md-auto mb-2 justify-content-center mb-md-0">
				<li><a href="#" className="nav-link px-2 link-secondary">Frontend</a></li>
				<li><a href="#" className="nav-link px-2 link-dark">Backend</a></li>
			</ul>
			{menu}
			</header>
  		</div>
	)
}

export default connect(
	(state: {user: User}) => ({
		user: state.user
	}),
  (dispatch: Dispatch<any>) => ({
    setUser: (user: User) => dispatch(setUserAction(user))
  })
)(Nav)

// components/Nav.tsx

import { Dispatch } from 'react'

import { connect } from 'react-redux'

import { User } from '../models/user'

import { Link } from 'react-router-dom'

import axios from 'axios'

import { setUserAction } from '../redux/actions/setUserAction'

const Nav = (props: any) => {

const logout = async () => {

await axios.post('logout')

props.setUser(null)

}

let menu

if (props.user?.id) {

menu = (

{props.user.first_name} {props.user.last_name}

</Link>

href="#" className="btn btn-outline-primary me-2"

onClick={logout}

logout

</a>

</div>

)

} else {

menu = (

<Link to={'/login'} className="btn btn-outline-primary me-2">Login</Link>

</div>

)

}

return (

<li><a href="#" className="nav-link px-2 link-secondary">Frontend</a></li>

<li><a href="#" className="nav-link px-2 link-dark">Backend</a></li>

</ul>

{menu}

</header>

</div>

)

}

export default connect(

(state: {user: User}) => ({

user: state.user

}),

(dispatch: Dispatch<any>) => ({

setUser: (user: User) => dispatch(setUserAction(user))

})

)(Nav)

App.tsx

// App.tsx
import { BrowserRouter, Route } from 'react-router-dom'
import ProductsFrontend from './pages/ProductsFrontend'
import Login from './pages/Login'
import Register from './pages/Register'
import Profile from './pages/Profile'
import './App.css';

function App() {
  return (
    <BrowserRouter>
      <Route path={'/'} exact component={ProductsFrontend} />
      <Route path={'/login'} component={Login} />
      <Route path={'/register'} component={Register} />
      <Route path={'/profile'} component={Profile} />
    </BrowserRouter>
  );
}

export default App;

// App.tsx

import { BrowserRouter, Route } from 'react-router-dom'

import ProductsFrontend from './pages/ProductsFrontend'

import Login from './pages/Login'

import Register from './pages/Register'

import Profile from './pages/Profile'

import './App.css';

function App() {

return (

</BrowserRouter>

);

}

export default App;

Layout.tsx

// components/Layout.tsx
import { Dispatch, useEffect } from 'react'
import { connect } from 'react-redux'
import { User } from '../models/user'
import { setUserAction } from '../redux/actions/setUserAction'
import { useLocation } from 'react-router'
import Nav from './Nav'
import Header from './Header'
import axios from 'axios'

const Layout = (props: any) => {
	const userURL = 'user'
	const location = useLocation()

	useEffect(() => {
		(
			async () => {
				try {
					const { data } = await axios.get(userURL)
					props.setUser(data)
				} catch(e) {
					console.log(e)
				}
			}
		)()
	}, [])

	let header
	if (location.pathname === '/' || location.pathname === '/backend') {
		header = <Header />
	}

	return (
		<div>
			<Nav />
			<main>
				{header}
				<div className="album py-5 bg-light">
					<div className="container">
						{props.children}
					</div>
				</div>
			</main>
		</div>
	)
}

// State
const mapStateToProps = (state: {user: User}) => ({
	user: state.user
})

// Dispatch
const mapDispatchToProps = (dispatch: Dispatch<any>) => ({
	// setUser(Action)->dispatch
	setUser: (user: User) => dispatch(setUserAction(user))
})

// LayoutコンポーネントをRedux Storeに登録
export default connect(mapStateToProps, mapDispatchToProps)(Layout)

// components/Layout.tsx

import { Dispatch, useEffect } from 'react'

import { connect } from 'react-redux'

import { User } from '../models/user'

import { setUserAction } from '../redux/actions/setUserAction'

import { useLocation } from 'react-router'

import Nav from './Nav'

import Header from './Header'

import axios from 'axios'

const Layout = (props: any) => {

const userURL = 'user'

const location = useLocation()

useEffect(() => {

(

async () => {

try {

const { data } = await axios.get(userURL)

props.setUser(data)

} catch(e) {

console.log(e)

}

)()

}, [])

let header

if (location.pathname === '/' || location.pathname === '/backend') {

header = <Header />

}

return (

<div>

<Nav />

<main>

{header}

{props.children}

</div>

</main>

</div>

)

}

// State

const mapStateToProps = (state: {user: User}) => ({

user: state.user

})

// Dispatch

const mapDispatchToProps = (dispatch: Dispatch<any>) => ({

// setUser(Action)->dispatch

setUser: (user: User) => dispatch(setUserAction(user))

})

// LayoutコンポーネントをRedux Storeに登録

export default connect(mapStateToProps, mapDispatchToProps)(Layout)

user.ts

// models/user.ts

export class User {
	id?: number
	first_name!: string
	last_name!: string
	email!: string
	password?: string
	password_confirm?: string
	revenue?: number
}

// models/user.ts

export class User {

id?: number

first_name!: string

last_name!: string

email!: string

password?: string

password_confirm?: string

revenue?: number

}

Header.tsx

// components/Header.tsx
import { useEffect, useState } from 'react'
import { Link } from 'react-router-dom'
import { User } from '../models/user'
import { connect } from 'react-redux'

const Header = (props: {user: User}) => {
  const [title, setTitle] = useState('Welcome')
  const [description, setDescription] = useState('Share links to earn money')

  useEffect(() => {
    if (props.user?.id) {
      setTitle(`$${props.user.revenue}`)
      setDescription('You have earned this far')
    } else {
      setTitle('Welcome')
      setDescription('Share links to earn money')
    }
  }, [props.user])

  let buttons;
  if (!props.user?.id) {
    buttons = (
      <p>
        <Link to={'/login'} className="btn btn-primary my-2">Login</Link>
        <Link to={'/register'} className="btn btn-secondary my-2">Register</Link>
      </p>
    )
  }

	return (
		<section className="py-5 text-center container">
          <div className="row py-lg-5">
            <div className="col-lg-6 col-md-8 mx-auto">
              <h1 className="fw-light">{title}</h1>
              <p className="lead text-muted">{description}</p>
              {buttons}
            </div>
          </div>
        </section>
	)
}

export default connect(
	(state: {user: User}) => ({
		user: state.user
	})
)(Header)

// components/Header.tsx

import { useEffect, useState } from 'react'

import { Link } from 'react-router-dom'

import { User } from '../models/user'

import { connect } from 'react-redux'

const Header = (props: {user: User}) => {

const [title, setTitle] = useState('Welcome')

const [description, setDescription] = useState('Share links to earn money')

useEffect(() => {

if (props.user?.id) {

setTitle(`$${props.user.revenue}`)

setDescription('You have earned this far')

} else {

setTitle('Welcome')

setDescription('Share links to earn money')

}

}, [props.user])

let buttons;

if (!props.user?.id) {

buttons = (

<p>

<Link to={'/login'} className="btn btn-primary my-2">Login</Link>

<Link to={'/register'} className="btn btn-secondary my-2">Register</Link>

</p>

)

}

return (

<h1 className="fw-light">{title}</h1>

<p className="lead text-muted">{description}</p>

{buttons}

</div>

</section>

)

}

export default connect(

(state: {user: User}) => ({

user: state.user

})

)(Header)

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						1
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16	17	18	19	20	21	22
23	24	25	26	27	28	29
30	31

[React]~Ambassador画面4:ヘッダーコンポーネントの実装~

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Nav.tsx

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Reactまとめ

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Nav.tsx

App.tsx

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user.ts

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