Why do we need a React List Key
Read OriginalThis article explains the importance of using a stable, unique 'key' prop for list items in React, beyond just fixing the common warning. It details why using an array index as a key is an anti-pattern and demonstrates the potential UI bugs this can cause, such as incorrect state being preserved when a list is reordered, using a concrete example with a checkbox.
0 comments
Comments
No comments yet
Be the first to share your thoughts!
Browser Extension
Get instant access to AllDevBlogs from your browser
Top of the Week
1
Fix your upgrades and migrations with Codemods
Cassidy Williams
•
2 votes
2
Designing Design Systems
TkDodo Dominik Dorfmeister
•
2 votes
3
A simple explanation of the big idea behind public key cryptography
Richard Gendal Brown
•
2 votes
4
Introducing RSC Explorer
Dan Abramov
•
1 votes
5
The Pulse: Cloudflare’s latest outage proves dangers of global configuration changes (again)
The Pragmatic Engineer Gergely Orosz
•
1 votes
6
Fragments Dec 11
Martin Fowler
•
1 votes
7
Adding Type Hints to my Blog
Daniel Feldroy
•
1 votes
8
Refactoring English: Month 12
Michael Lynch
•
1 votes
9
Converting HTTP Header Values To UTF-8 In ColdFusion
Ben Nadel
•
1 votes
10
Pausing a CSS animation with getAnimations()
Cassidy Williams
•
1 votes