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| import {Component} from "react";
interface DemoComponentState {
val: number;
}
export class DemoComponent extends Component<{}, DemoComponentState> {
constructor(props: {}) {
super(props);
this.state = {
val: 0,
};
}
componentDidMount() {
this.setState({val: this.state.val + 1}, () => {
console.log(this.state.val);
});
this.setState({val: this.state.val + 1}, () => {
console.log(this.state.val);
});
setTimeout(() => {
this.setState({val: this.state.val + 1}, () => {
console.log(this.state.val);
});
this.setState({val: this.state.val + 1}, () => {
console.log(this.state.val);
});
}, 0);
}
render() {
return null;
}
}
|