react typescript set type
interface MyFooType {
value: string;
}
const [foo, setFoo] = useState<MyFooType>(); // if not array
const [foo, setFoo] = useState<MyFooType[]>([]); // if it's an arrayreact typescript set type
interface MyFooType {
value: string;
}
const [foo, setFoo] = useState<MyFooType>(); // if not array
const [foo, setFoo] = useState<MyFooType[]>([]); // if it's an arraystate in react typescript
interface IProps {
}
interface IState {
playOrPause?: string;
}
class Player extends React.Component<IProps, IState> {
// ------------------------------------------^
constructor(props: IProps) {
super(props);
this.state = {
playOrPause: 'Play'
};
}
render() {
return(
<div>
<button
ref={playPause => this.playPause = playPause}
title={this.state.playOrPause} // in this line I get an error
>
Play
</button>
</div>
);
}
}Copyright © 2021 Codeinu
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