Automatic batching
Automatic batching is a new feature in React 18 that improves the performance of updates by automatically batching multiple updates into a single render pass. In traditional React, updates to the user interface are typically processed synchronously, which means that each update triggers a new render pass.
This can be inefficient, especially when multiple updates occur in rapid succession. Automatic batching solves this problem by grouping multiple updates together and processing them in a single render pass.
Here’s an example to illustrate how automatic batching works:
function MyComponent() {
const [count, setCount] = useState(0)
function handleClick() {
setCount(count + 1)
setCount(count + 1)
setCount(count + 1)
}
return (
<div>
<p>Count: {count}</p>
<button onClick={handleClick}>Increment</button>
</div>
)
}
In this example, we have a MyComponent component that...