react typescript props
// Declare the type of the props
type CarProps = {
name: string;
brand: string;
price;
}
// usage 1
const Car: React.FC<CarProps> = (props) => {
const { name, brand, price } = props;
// some logic
}
// usage 2
const Car: React.FC<CarProps> = ({ name, brand, price }) => {
// some logic
}typescript react class component
import * as React from 'react';
export interface TestProps {
count: number;
}
export interface TestState {
count: number;
}
class Test extends React.Component<TestProps, TestState> {
state = { count:0 }
render() {
return ( <h2>this is test</h2> );
}
}
export default Test;state 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>
);
}
}TYPESCript props class component
class Test extends Component<PropsType,StateType> {
constructor(props : PropsType){
super(props)
}
render(){
console.log(this.props)
return (
<p>this.props.whatever</p>
)
}
};ts react props type
type Props = {
size: string;
}
const Component = ({ size = 'medium' }: Props) => (
<div className={cn('spinner', size)} />
);Copyright © 2021 Codeinu
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