README.md

useWhyUpdate

A React hook for let you kown the reason of you component update.

Motivation

Most of other similar hooks can only trace the updates caused by props, which is often not enough.

And by using fiber to get data, this hook can tell you all the reasons for a component update.

Installation

pnpm install use-why-update

Usage

import { useState, useEffect } from "react";
import useWhyUpdate from "use-why-update";

function App() {
  const [name, setName] = useState("world");
  useWhyUpdate("App");
  useEffect(() => {
    setName("alan");
  }, []);

  return <p>hello {name}</p>;
}