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September 16, 2019 23:26
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import React, { useState } from "react"; | |
import styled from "styled-components"; | |
import "./App.css"; | |
// Styled components definitions for all components | |
const Header = styled.header``; | |
const Nav = styled.nav``; | |
const MainContent = styled.main``; | |
const Container = styled.div``; | |
const InputForm = styled.form` | |
border: none; | |
`; | |
const InputField = styled.input``; | |
const NotesList = styled.section``; | |
const Button = styled.button``; | |
// React Components Code | |
const App: React.FC = () => { | |
// Managing state with React Hooks | |
const [titleValue, setTitleValue]: [ | |
string, | |
(newValue: string) => void | |
] = useState(""); | |
const [contentValue, setContentValue]: [ | |
string, | |
(newValue: string) => void | |
] = useState(""); | |
const [notes, setNotes]: [Array<any>, Function] = useState([ | |
{ | |
title: "First Note", | |
content: "You normally know how things like these turn out, don't you?" | |
} | |
]); | |
// Event handlers for Input and Content fields | |
const handleTitleChange = (e: React.ChangeEvent<HTMLInputElement>) => { | |
setTitleValue(e.target.value); | |
}; | |
const handleContentChange = (e: React.ChangeEvent<HTMLInputElement>) => { | |
setContentValue(e.target.value); | |
}; | |
const addNote = (e: React.FormEvent<HTMLFormElement>) => { | |
e.preventDefault(); | |
let newNote = { title: titleValue, content: contentValue }; | |
setNotes((prevNotes: object[]) => [prevNotes.slice(), newNote]); | |
// Empty both Input Fields | |
setContentValue(""); | |
setTitleValue(""); | |
}; | |
return ( | |
<> | |
<Header> | |
<Nav> | |
<Container> | |
<a href="/">Notes App</a> | |
</Container> | |
</Nav> | |
<MainContent> | |
<Container> | |
<InputForm onSubmit={addNote}> | |
<InputField | |
type="text" | |
onChange={handleTitleChange} | |
value={titleValue} | |
/> | |
<InputField | |
type="text" | |
onChange={handleContentChange} | |
value={contentValue} | |
/> | |
<Button type="submit">Add Note</Button> | |
<NotesList> | |
{notes.map(note => { | |
return ( | |
<ul> | |
<li> | |
<p>{note.title}</p> | |
<p>{note.content}</p> | |
</li> | |
</ul> | |
); | |
})} | |
</NotesList> | |
</InputForm> | |
</Container> | |
</MainContent> | |
</Header> | |
</> | |
); | |
}; | |
export default App; |
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