Issue with index as keys
Assigning indexes as keys is highly discouraged because if the elements of the arrays get reordered in the future then it will get confusing for the developer as the keys for the elements will also change.
ReactJS Keys
React JS keys are a way of providing a unique identity to each item while creating the React JS Lists so that React can identify the element to be processed.
Table of Content
- What is a key in React ?
- Assigning keys to the list
- Issue with index as keys
- Difference between keys and props in React
- Using Keys with Components
- Incorrect usage of keys
- Correct usage of keys
- Uniqueness of Keys
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