react-footgun

useFootGun() Hook Documentation

The useFootGun() hook is designed for testing purposes to simulate a scenario where an asynchronous task gradually increases in complexity, potentially impacting the performance of a React application. It is important to note that deliberately causing poor performance is not a standard practice and should be used cautiously for testing purposes only.

Usage

• Import the Hook

  import useFootGun from 'react-footgun';
  

• Use the Hook

  function App() {
    const iterations = useFootGun();
    
    // Use the 'iterations' value as needed
  }
  

Functionality

The useFootGun() hook performs the following actions:

• Initializes a state variable iterations using the useState hook, starting with an initial value of 1.
• In the first useEffect hook:
  • Runs a heavy computation task with the current number of iterations.
  • Re-runs the computation whenever the iterations value changes.
• In the second useEffect hook:
  • Sets up an interval that increases the iterations value by 1000 every second.
  • Cleans up the interval when the component unmounts.
• In the third useEffect hook:
  • Initializes a running flag to control the while loop.
  • Defines an async function runLoop() that runs a while loop with a delay of 1 second between iterations.
  • Calls the heavyTask() function (simulated heavy computation) inside the loop.
  • Sets the running flag to false when the component unmounts, stopping the loop.

Notes

• This hook is intended for testing purposes and should not be used in production code.
• Deliberately degrading performance is not a recommended practice.
• For accurate performance testing, use browser developer tools or profiling tools.

Disclaimer

The provided code is an example for testing purposes only. It is not recommended to intentionally degrade performance in a production environment.