React Key Prop - Why You Need to Care About It
I show exactly why you should NEVER use the array index as key in React - I demonstrate a bug caused by that and how to fix this.
0:00 - Example how index as key causes bugs
0:58 - Why does the bug happen?
1:39 - How to fix the bug - using uuid as key
2:23 - Common pitfall - avoid doing that!
