This is what I got as warning in my console: Proving index as key prop give same warning and uuidv4() also. What should I give as key prop in thi ...

I am trying to add a functionality that remove an item from the shopping cart component by clicking the onClick that fires the removeProductFromCartAt ...

An error seems to occur because the key value is not entered in the map function, but I do not know how to modify the code. The array is structured l ...

I read this article about 'why using index as a key is an anti pattern' and got curious why my project works so well with index based key matrix. I w ...

I have tried different things to eliminate Encountered two children with the same key, NaN. Keys should be unique and this is partial log: Which is ...

Having a bit of a headache at the moment. I creating a quiz platform using React, and currently, I have a question component, which using , where insi ...

I'm using react in front-end and node, express and mongoose in backend. I have already made a key={uniqueid} in the files but still I'm getting the e ...

I am going to take a list of movies and show them. Each movie has a unique value called id, and I want to use it as a key. But An error occurs : inde ...

As per React docs, they are not recommending to use the key as an index. but is there any issue with using the index and a string value. like below on ...

I have a complex data set, so I will show a very simplified version for an example. Input data: Each item of the array is removable. It turns out ...

In the ReactJS page of Reconciliation, there are two examples: an example of the issues that can be caused by using indexes as keys an updated v ...

I can't make it not work well if I use index as the key. The only way is if I mutate the array and use index as the key. But since the docs says not t ...

When working with a dynamic number of components, React asks developers to provide a unique key, lest this error is thrown: Each child in a list s ...

I would like to use react-key-index extension in order to generate unique id's. I was trying to implement their sample example, but no matter what I d ...