bereaksi sate dan alat peraga
incrementCount() {
this.setState((state) => {
// Important: read `state` instead of `this.state` when updating.
return {count: state.count + 1}
});
}
handleSomething() {
// Let's say `this.state.count` starts at 0.
this.incrementCount();
this.incrementCount();
this.incrementCount();
// If you read `this.state.count` now, it would still be 0.
// But when React re-renders the component, it will be 3.
}
koder