Does React keep the order for state updates

Question

With the help of code and example can u tell me Does React keep the order for state updates?

Answer 1

No, React does not always keep the order of state updates, especially when updates are batched in event handlers or asynchronous functions. React optimizes performance by grouping multiple state updates and applying them together, which may cause them to execute in a different order than expected.

Best Approach: Use Functional Updates

To ensure state updates happen in the correct order, use functional updates when updating state based on the previous state:

setState((prevState) => newState);

Example:

import { useState } from "react";

function Counter() {

  const [count, setCount] = useState(0);

  const increment = () => {

    setCount((prev) => prev + 1);

    setCount((prev) => prev + 1);

    setCount((prev) => prev + 1);

  };

  return (

    <div>

      <p>Count: {count}</p>

      <button onClick={increment}>Increase</button>

    </div>

  );

}

export default Counter;