In this kit, we're going to see how to update values inside an array using React with simple steps. Arrays are mutable in JavaScript, but you should treat them as immutable when you store them in state. Just like with objects, when you want to update an array stored in state, you need to create a new one (or make a copy of an existing one), and then set state to use the new array. To update an object in an array in React state: Use the map() method to iterate over the array. On each iteration, check if a certain condition is met. Update the object that satisfies the condition and return all other objects as is. To implement this, use the ready-made code snippet below by just copying the code and paste it in your IDE with required libraries.
Fig : Preview of the output that you will get on running this code from your IDE.
In this solution we're using React library.
Follow the steps carefully to get the output easily.
You can also refer this url 'DEMO' for getting the above output.
I hope you found this useful. I have added the link to dependent libraries, version information in the following sections.
I found this code snippet by searching for 'react interview exercise' in kandi. You can try any such use case!
I tested this solution in the following versions. Be mindful of changes when working with other versions.
Using this solution, we are able to update values inside an array in React with simple steps. This process also facilities an easy way to use, hassle-free method to create a hands-on working version of code which would help us to update values inside an array in React.
JavaScript 201119 Version:18.2.0
JavaScript 201119 Version:18.2.0 License: Permissive (MIT)
JavaScript 1321 Version:0.0.4
JavaScript 1321 Version:0.0.4 License: Others (Non-SPDX)
Open Weaver – Develop Applications Faster with Open Source