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Understanding the importance of the key prop in React 🗝

Franco D'Alessio on April 01, 2020

Photo by Shane Avery on Unsplash If you’ve written some React code, you’ve most probably seen this warning: Almost every React application displays...
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Usman Khalil •

That's an excellent explanation. Bring more

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Franco D'Alessio •

Thank you very much!

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DevWorksSimone •

Nice article, good to see the unwanted side effect in act 😉

Bell articolo, utile vedere i side effetti indesiderati senza key.

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Franco D'Alessio •

Thank you! I'm glad it was helpful!

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Orel Kanditan •

Good explanation to an important concept

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Franco D'Alessio •

Thank you, I'm glad it helped!

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Majedur Rahaman •

Thanks. Excellent answer with clear description!

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Franco D'Alessio •

Thank you, I'm glad it helped!

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Quy Dinh Cong •

Excellent explanation, thank you so much 👏🏻

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Franco D'Alessio •

Thanks to you for your comment!

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Yara • • Edited

Todella hyödyllinen aihe Reactin parissa! 🗝️ key-prop voi vaikuttaa pieneltä yksityiskohdalta, mutta sillä on tärkeä rooli listojen renderöinnissä ja siinä, miten React tunnistaa komponenttien muutokset. Erityisesti dynaamisissa listoissa oikeat ja vakaat avaimet auttavat välttämään outoa käyttäytymistä ja turhia renderöintejä. Hyvä muistutus siitä, että pienilläkin Reactin valtti kasino yksityiskohdilla on suuri merkitys projektin laadulle.

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kasun-ISL •

In the emoji example why it deletes last one in the List.It has to be random. Isn't it?

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Rohnikoul •

The best explanation so far!

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Franco D'Alessio •

Thank you very much!

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huanzo86 •

Good explanation to a important concept !!

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Sasidharan •

Very helpful. You saved my day. ;)