how to define state in react function
import React, { useState } from 'react';
function Example() {
// Declare a new state variable, which we'll call "count"
const [count, setCount] = useState(0);
return (
<div>
<p>You clicked {count} times</p>
<button onClick={() => setCount(count + 1)}>
Click me
</button>
</div>
);
}setState
@protected
void setState(VoidCallback fn) {
if (_scopeKey.currentState != null) {
_scopeKey.currentState!._routeSetState(fn);
} else {
// The route isn't currently visible, so we don't have to call its setState
// method, but we do still need to call the fn callback, otherwise the state
// in the route won't be updated!
fn();
}
}Copyright © 2021 Codeinu
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