3 - Fetching Data
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With Hooks, we don't really talk about the "lifecycle" of a component any more, but this section is intended to show exactly what happens at each step in the code.
Walking through the code like this is sometimes called "playing computer". A step-by-step description has been provided in the syllabus, but this was intended as revision material. It is recommended to keep the code example on the screen and walk through each line together with the students.
To keep students engaged, it can be useful to ask them to predict what the next step does. This also allows you to get feedback on whether a trainee is following or not.
At the end of the "playing computer" ask whether the students have spotted the bug in the logic: the effect is not updating when the prop changes. Therefore the key point to emphasize is that useEffect is not queued when the component re-renders.
Emphasize that the rule likely knows best, so if it suggests adding a dependency it is recommended to add it.
If you haven't already, complete the in-class exercises on your pokedex app
Complete all of the lesson 3 of project
Try to complete the in the cyf-hotel-react homework
Live coding session with students to go over project lession 3 steps and Q&A session to clear their doubts.
We can always improve thanks to your feedback, you can use this document to send your ideas or suggestions on every week. This will help us to improve Syllabus and this guide