React useEffect tutorial (react hooks)

Sign Up 👻👻👉 https://semicolon.dev/YouTube (We're free online community, meet other makers!) #react #reactjs #useeffect This tutorial is a brief walk through example of how to use useeffect hook in React. Instead of complex explanations, I'll just type useState and useEffect examples into the React app, to show the workflow. Hope this helps someone :) 00:00 How to use useEffect hook in React 00:15 Start with a blank React app (all it does is print text: useEffect example) 00:23 Import useState from react 00:36 Creating state variables / objects a and b for testing useEffect hook 01:22 How to import useEffect 01:30 Adding useEffect hook to your functional React component 02:03 Why useEffect executes twice in my component? (How to disable Strict Mode) 02:42 How to add click handler funcitons to react component 02:59 Adding clickable buttons to component 03:34 Example of how to use useEffect hook to track state changes 04:25 Empty useEffect dependency array 05:30 How to add dependencies to useEffect 06:24 How to add return value to useEffect for post-state change cleanup