state with react functions
class Example extends React.Component {
constructor(props) {
super(props);
this.state = {
count: 0
};
}
render() {
return (
<div>
<p>You clicked {this.state.count} times</p>
<button onClick={() => this.setState({ count: this.state.count + 1 })}>
Click me
</button>
</div>
);
}
}react hooks demo
// Same basic function as in reactjs site, with a bit of improvement
import React, { useState, useEffect } from 'react';
export default function Homepage() {
// Declare a new state variable, which we'll call "count"
const [count, setCount] = useState(0);
useEffect(() => {
document.title = `You clicked ${count} times`;
})
return (
<div>
<h2>You clicked {count} times!</h2>
<button onClick={() => setCount(count > 0 ? count - 1 : count)}> Decrement </button>
<button onClick={() => setCount(count + 1)}> Increment </button>
</div>
);
}how to use hooks react
const App = () => {
const [students , setStudents] = useState([]);
return (
// put in the jsx code here
)
}Copyright © 2021 Codeinu
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