React quiz - useState() quirk

React tries to optimize as best effort, but not as guarantee.

useState() quirk (pass rate: 7%)react@18.3.1

{...}
import * as React from "react";
import { useState } from "react";
import { createRoot } from "react-dom/client";
import { screen, fireEvent } from "@testing-library/dom";
function A() {
  console.log(2);
  return null;
}
function App() {
  const [_state, setState] = useState(false);
  console.log(1);
  return (
    <>
      <button
        onClick={() => {
          console.log("click");
          setState(true);
        }}
        data-testid="action"
      >
        click me
      </button>
      <A />
    </>
  );
}
const root = createRoot(document.getElementById("root"));
root.render(<App />);
(async function () {
  const action = await screen.findByTestId("action");
  fireEvent.click(action);
  await wait(100);
  fireEvent.click(action);
  await wait(100);
  fireEvent.click(action);
click the button 3 times
})();
{...}
function wait(duration = 100) {
  return new Promise((resolve) => setTimeout(resolve, duration));
}

{...}
import * as React from "react";
import { useState } from "react";
import { createRoot } from "react-dom/client";
import { screen, fireEvent } from "@testing-library/dom";
function A() {
  console.log(2);
  return null;
}
function App() {
  const [_state, setState] = useState(false);
  console.log(1);
  return (
    <>
      <button
        onClick={() => {
          console.log("click");
          setState(true);
        }}
        data-testid="action"
      >
        click me
      </button>
      <A />
    </>
  );
}
const root = createRoot(document.getElementById("root"));
root.render(<App />);
(async function () {
  const action = await screen.findByTestId("action");
  fireEvent.click(action);
  await wait(100);
  fireEvent.click(action);
  await wait(100);
  fireEvent.click(action);
click the button 3 times
})();
{...}
function wait(duration = 100) {
  return new Promise((resolve) => setTimeout(resolve, duration));
}

What gets logged in order?

click on the console.log lines to input your answer.