Disclaimer: This is a gross oversimplification and should be used as a basic guide on how reconciliation works, not a perfect example!
When handli...
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Regarding the opening statement - '...utilisation of the 'key' attribute on each element can be crucial for avoiding needless rerender performance hits.', am I right to say that the 'key' attribute doesn't prevent or reduce the number of times a component is re-rendered? Instead, it's more of making React's life easier when it comes to deciding what change is needed to update the browser DOM?
Love the explanation btw!
Very nice explanation, finally understood :)
Typo in 3rd image / Code snippet
last span should have key = '2'.
Great explanation! I now finally understand why keys are needed when rendering component arrays!
I felt this article like some "explain to me like I'm 5" tutorial so it was very clear for me, thank you for this post.
Finally understood!!! Thanks so much!
Finally. Went through a lot of jibberish on React Keys. This article explains it in the most simple and clear way
So using items ID is supposed to be better as it is unique in the DB.
Great explanation!