Delete state reactjs. Don't remove keys from complex state objects.

Delete state reactjs Have a list of math problems in an array and declaratively render the list using . May 12, 2023 · Hello, hustler! In this tutorial, you'll learn how to add, insert, update, and remove items from an array using the useState hook in React. Finally, update the state with the new object. Upvoting indicates when questions and answers are useful. js import React, { Component } from 'react'; import '. Instead, when you want to update an object, you need to create a new one (or make a copy of an existing one), and then set the state to use that copy. I tried using updateList(list. It's quite imperative to manually set each piece of state back to empty strings in clearState I was wondering if there is a method or function that comes with React that resets the state back to its initial values? Nov 2, 2021 · Deleting object of a state array in React using id Asked 3 years, 6 months ago Modified 3 years, 6 months ago Viewed 620 times Jan 19, 2022 · Here the parent component is in the src / App file. When that data changes, React automatically rerenders the component to reflect new values. Oct 13, 2021 · I have this object that I want to delete according to id. When an item from res is deleted, selectedItems should be updated to remove the index of that item from the list. Since I should not modify the this. . Tried to react refs too, no joy. Whenever I try to delete a specific item however, it just deletes the last item added to the array, rather than the item that corresponds to the index of the target clicked. Adding a state variable To add a state variable, import useState from React at the top of the file: 🤝 Local State = Remote State Just get and set observables and they sync themselves with a powerful sync engine. e. In this article, you will learn how to use Redux in your React application by creating a simple todo application. However, sometimes I face issues because of the way this persistence work, namely via the local storage of the client. But if the button is clicked, the desired task does not get removed or deleted. State can hold any kind of JavaScript value, including objects. const reducers = combineReducers({ reducer1, reducer2, reducer3 }); When a user performs a logout, how do I delete Sep 6, 2016 · Our user should be able to delete a cat by clicking a "delete" button displayed alongside the cat's details. This is known as lifting state up, and it’s one of the most common things you will do writing React code. Deleting the complete Learn how to clear and reset form input fields in ReactJS with examples and best practices discussed on Stack Overflow. However, directly mutating the state is discouraged in React due to potential issues. map. but when i update the usestate array object the selected index is not working. state = {} this. css' let nextId May 7, 2024 · In this guide, we'll explore how to update and delete items in an array stored in state. You'll need to complete a few actions and gain 15 reputation points before being able to upvote. id !== id Aug 5, 2022 · While updating react state arrays, use methods that return a new array (map, filter, slice, concat), rather than ones that modify the existing array (splice, push, pop, sort). I think I have it very close but cannot figure out how to get some sort of In this tutorial, you will learn how to use the React State to store data that changes over time and control the behavior of a component. What's reputation and how do I get it? Instead, you can save this post to reference later. slice(list. target. map() method to iterate over each task and display it. Every time you want to modify something in React, for example a list where you want to remove an item, you have to use React's state management. With this in mind, how can you remove a key from a state object in React. id)} May 3, 2019 · Can't delete the item from the array that is in my state. state variable directly, is there a better way (more concise) to In this video, We are explaining about How to Delete Data from the State in React JS?. Right now, I need to refresh the Nov 11, 2020 · A quick set of examples to show how to send HTTP DELETE requests from React to a backend API using fetch () Nov 17, 2025 · State is React’s built-in way of storing data that changes over time. Sometimes when we work with arrays, we need to remove an item from these arrays. Managing local or session storage is a repetitive task, so it is a good practice to create a custom hook that manages the storage properly. Feb 26, 2016 · Still learning React JS and Redux, and found this boilerplate to be extremely helpful. Always try to create a deep-clone or copy of the state if you plan on doing some sort of mutation (deletion, update). I've tried a variable with the initial state then after closing filling the state with it, but it did not work. To get some practice, I decided to add the delete button and the "remove last item" button. It then runs . 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. State generally refers to data or properties that need to be tracking in an application. remove item at index from state. items). But if the state within a component changes, it always triggers a re-render of the component. I did a tutorial to add a todo-list. Alternatively, we can use the delete operator. Once the modal closes I need to empty the array. forceUpdate() With update to react 16, this didn't Remove Items from State. Kita akan belajar pemanfaatan Hooks sebagai State Management di React JS dengan langsung belajar studi kasus CRUD Buku Kontak. As mentioned in the previous chapter, components can: hold, manage, and change their own state. So when you are modifying deck you are actually trying to modify the state itself. React keeps track of which state belongs to which component based on their place in the UI tree. setState({name : ''}) PFB working code for your reference : The state stored in React may have changed by the time the alert runs, but it was scheduled using a snapshot of the state at the time the user interacted with it! A state variable’s value never changes within a render, even if its event handler’s code is asynchronous. Since the cats state is now an array , you can easily manipulate the values or remove them using index Jul 12, 2021 · Maybe it is a dumb question, because I don't find any response on the net for this, but I'm trying to update my state after a axios. In this section, we will learn how to remove an object from an array of objects in React. Removing redundant and duplicate data from state helps ensure that all its pieces stay in sync. The goal behind these principles is to make state easy to update without introducing mistakes. Would this be considered an anti-pattern in React? Using the delete operator on the previous state value and then returning that? BIG_DATA_SET being… Jan 3, 2018 · I have problem with removeItem function (it should remove current <li> that button is nested in, and item from array on this. The following code updates the array but not clear array on click of closeModal. How do I reset the store to its initial state? For example, let’s say I have two user accounts (u1 and u2). js then we will add a state with the name isRefresh and then create a function setRefresh to update the value state. Sep 23, 2024 · We’ll cover everything from basic state initialization to advanced state management techniques, including the batching process. May 14, 2018 · I have multiple reducers which I combine together in my redux application. While updating React state using its previous value, the callback argument should be used for the state setter. Wrapper component: I'm doing a simple todo app with React, just to practise. May 2, 2022 · In a single line we can remove the element we wanted, without using javascript methods, or mutating our state. I'm passing the index to my delete function and than I was trying to filter through the array to set a new State. Use Function-based component and Class-based component techniques to call HTTP methods. Below example presents two functions: handleAddItem that uses spread operator () to create a copy of array in the state, adds an item to it and then with setState() method updates the state value. Nov 24, 2023 · Certainly! CRUD operations stand for Create, Read, Update, and Delete, which are fundamental operations in many applications. However the app renders differently in comparison to the state. Jun 3, 2018 · Remove an item from local storage in reactjs Asked 7 years, 5 months ago Modified 5 years, 7 months ago Viewed 46k times Apr 6, 2024 · A step-by-step guide on how to clear an input field's value in React. Oct 1, 2025 · With our component plan worked out, it's now time to start updating our app from a completely static UI to one that actually allows us to interact and change things. Steps to Handle Delete Actions: Identify the Element Triggering Delete: Typically, a delete button or link associated with the item. CRUD operations are fundamental actions performed on data in a system. state = { newItem: { name: "", amount: 0 }, products: [ { Feb 2, 2024 · Manage objects with React's useState Hook by creating a temporary object and using object destructuring to create a new object. State machines make it a breeze! Jul 4, 2022 · The situation: I have a wrapper JSX component which holds my React hook (useState). id !== id) should be sufficient for removing an element from array. Consolidate state logic with a reducer As your components grow in complexity, it can get harder to see at a glance all the different ways in which a component’s state gets updated. Jun 27, 2022 · React We usually work with React and fetch to get responses and build states with these. then(() => deleteFromArray(id)), but your code should delete the element from the state array just fine. This guide will walk you through the essential steps to build a simple CRUD app using React and useState. Sep 22, 2019 · In my state I have an array, which I mapped in render function: State this. With your solution, although the state is updates successfully, the rendered graph is missing always the last link of Dec 13, 2022 · Tutorial on how make GET/POST/PUT/DELETE HTTP calls in react using fetch Jul 23, 2025 · CRUD (Create, Read, Update, Delete) CRUD (Create, Read, Update, Delete) operations are fundamental for managing data in applications. The component allows users to input task details such as name, email, phone, and type, and provides functionality to add, edit, and delete tasks. Jun 10, 2023 · Delete an Item from a State Array in a React Component We can return a new array within the state setter function’s callback to change a React component’s state array. the markers. A common use case is deleting an item from an array stored in the component’s state. The recipes are fetched via API. Jan 20, 2018 · ReactJs How to Delete state item by one Asked 7 years, 2 months ago Modified 7 years, 2 months ago Viewed 96 times Feb 10, 2023 · Redux is a state management tool for JavaScript applications. The React useState Hook allows us to track state in a function component. It’s perfect for simple state management scenarios. Aug 22, 2024 · I want to remove a task from your Todolist. We’ll use the useState hook and function components. You can use other methods to create a copy of the states values and modify that. Feb 26, 2016 · I am using Redux for state management. Hi, I wonder what is the best practice to remove a property from an object in the reducer? The object. Managing state This was only an introduction to state, and there's more you can learn about managing state and data flow in your React applications. A state setter function to update the variable and trigger React to render the component again. When possible, prefer to structure state in a flat way. Redundant or duplicate state is a common source of bugs. The problem is this, when I click on the X, the point is Jul 23, 2025 · To manage Loacal Storage and Session Storage, we can use hooks like useEffect and useState provided by React. More specifi May 15, 2021 · Delete an Item from a State Array in a React Component We can return a new array within the state setter function’s callback to change a React component’s state array. I have two separate files App. The delete handler should also use a functional update so you don't need to also pass the state object around either. const record = { AAABBB: "something random", B7DRKV: "hello" } Today I'm using the delete keyword, but I am not sure if that is a good practice or not? Do you have any tips or tricks? Apr 23, 2021 · A quick set of examples to show how to send HTTP DELETE requests from React to a backend API using axios Jul 22, 2021 · I am trying to delete items from state variable in useEffect using the props comming to the component. the selected index is correct. Oct 25, 2021 · 4 I have a component with a table that is loaded with the data sent by the REST API, my question more than anything, is if it is good to delete a row with remove () or deleteRow (index) entering the DOM or I have to manipulate the DOM through a state (useState) for good practice or something like that. todo. Comparing Axios with Native Fetch Nov 8, 2021 · I want to delete an object from an array of objects into another array in React, but I am a bit confused, so far I can push an object into the array. I cannot figure out how to remove the ToDos. May 14, 2023 · Assuming you're using react-router-dom, it's using History API by default, so basically there's no way to delete history state. Repository Check out the complete source code here Prerequisites The todo Application will be built The problem arises because you are directly modifying the state. /App. data array to create a new array that includes all items that don't meet the condition. Adding one is relatively easy, but pulling out a key-value pair from the state can be done in several different ways, so I was wondering which one is best, most readable, most performant and most preferred by the ReactJS audience. But make sure you keep your data in a state variable so that your view re-renders when you update it using setData. I want to take initial values from state variable and then delete elements in that array and s Aug 27, 2021 · 1 You need to maintain a cat List state in the App. In this video, we'll use the filter () array iteration method to remove an object from the items array in state. May 14, 2020 · It's a common task in React to remove an item from a list. You will also learn how to create a fully functional to do list application, using functional components and the use state hook. This solution achieves to update the state properly. We have mentioned it in places and now we are finally going to look at it in greater detail — state and the so-called lifecycle methods. 20 Easy Way To Delete Item From state array in react: when any data delete from database and update list without API calling that time you pass deleted id to this function and this function remove deleted recored from list Jun 25, 2025 · It is important to manage the state in ReactJS for building interactive user interfaces. Dec 24, 2020 · In general it should be . If this is required, we must be careful not to mutate our original state. e value= {this. I would like to know how to update state of data after deleting some recipe with DELETE request. As we know, fetch and axios are the ways with which we can access the API, and today we will see, how we can perform Deletion of the data from fetched data from API. After the post is successfully deleted, we update the data state by filtering out the deleted post based on its id. In this article, we’ll explore different ways to handle this operation in ReactJS. Here I want to show you briefly how this works. It includes event handlers for form submission, editing tasks, and deleting tasks. Updating Items in an Array To update items in an array within your state, you typically use the map method. , photoID Here's one way: duplicate the object (so React notices the change), delete the key (maybe this is the JavaScript feature you were missing), and set the state. Aug 16, 2019 · 18 Considering that your state is an array of objects, one solution would be to eliminate the selected item by their index. Declare value attribute for input tag (i. const [data, setData] = useState([{id:1, name:'grapes'},{id:2, name:'orange'}]); const deleteFruit= (id) =>{ const tempData = data. Imagine the following sequence of events: User u1 Mar 16, 2025 · To remove a key from the state object, we deconstruct the key and the remaining properties and update the state with the remaining properties. This removes everything but the last item in the array and I'm not certain why. Can you elaborate on how you determined that the filtered array is ok? Jan 20, 2019 · I would like to delete an item from an item list using filter() . If you use state objects as simple maps such as registering multiple programmatically managed instances of a child component within a parent (toasts in a toaster by timestamp for me) then do this. It provides a store for our applications and methods to get the state, listen to changes in your state, and update it. Mar 3, 2025 · [React 101] - #1 - Preserving and Resetting State State is isolated between components. I have fourth input field and the button that I want to use to delete Employee from the table based on ID. Instead, adopting a functional approach is essential for maintaining the integrity of your state. Basic CRUD Oct 27, 2023 · In this article, we are going to learn about HTTP Delete Method in React JS. This method Tagged with react, array, filter. Updating Arrays in State Arrays are mutable in JavaScript, but you should treat them as immutable when you store them in state. One of the most common and versatile tools for this purpose is the humble cookie. Delete" refers to removing or deleting a particular piece of data from your application's state or server. Avoid deeply nested state. ``id`` co May 18, 2022 · In this component, as you can see by the state I have three input fields for adding it's value to the table. But what exactly are cookies, and how can we harness their power in React applications? This blog post will dive deep into the world of React Cookies, exploring everything from basic The useState Hook provides those two things: A state variable to retain the data between renders. filter(item => item. Mar 5, 2018 · As for deleting an object (dictionary) attribute, you can use delete obj[attr]. Apr 5, 2017 · You are managing the data in Parent component and rendering the UI in Child component, so to delete item from child component you need to pass a function along with data, call that function from child and pass any unique identifier of list item, inside parent component delete the item using that unique identifier. Jun 15, 2021 · I have two functions , one of them adds an item in array and the other one delete from that array using React JS (hooks). list), no code currently because I try so much things of tha Apr 29, 2020 · There are situations where we want to remove a key from an object inside a component’s state. Dec 26, 2017 · Since support for replaceState is removed and setState does shallow merging, is it possible to remove all state variables and update the state by adding new variables as in the cases below without In this article, we would like to show you how to add and remove items from an array in the state in React. We will be using React's useState Hook here, for the sake of keeping the first example simple, however, you can also use React's useReducer Hook Dec 31, 2023 · Typescript Reactjs Typescript , Reactjs #How to remove an object from an array in ReactJS #How to remove an element from an array in React state? #Conclusion This tutorial explains how to remove an element from an array of elements in React with code examples. Jul 29, 2022 · The article teaches two things: First, you will learn how to pass parameters into functions and delete state directly from the document object model. Something like this: We'll manage our delete feature from the CatPage component. Before react 16 I just called these two lines this. You can control when to preserve state and when to reset it between re-renders. useState (): The Building Block of State Management The useState hook is the most basic and commonly used method for managing the state in functional components. However, you could replace current May 10, 2024 · Creating a CRUD (Create, Read, Update, Delete) application in React is an excellent way to understand and practice state management with the useState hook. js and handle the delete, update and add on this state . js? A key can be removed safely from a component’s state by utilizing Object. js export default class Todos extends Component { constructor(pr Nov 28, 2020 · I am doing an E-shop template in ReactJS to practice, everything is done but I can't figure out what is the best way to remove one item from state in form of array with objects. We can update the state array of a React component using the callback function of the state setter method to return a new array. You seem to have a lot of duplicated state and multiple delete handlers, this may be part of your problem. I am using . assign(). Learn how to delete items from arrays in React. In this article, I'll cover the whole process of managing storage with the best industry standard practice. Mar 16, 2021 · I could just figure out that in order to delete the item from an array in the state of my main parent “App component” I have to pass the child component’s id, as the argument in another props of the delete handleDelete function like that onClick={() => this. below is my code import React from "react"; import { useState } from "react"; import '. How can we delete an element by index from an array stored in our component state in JavaScript? Dec 21, 2022 · Here is an example of how you can delete an element from an array in JavaScript using its id property: Apr 12, 2023 · When i select and delete some of array object added on usestate. i don't know why. Feb 18, 2016 · I am rendering an array in a modal. Pass Identifiers: Ensure each item has a unique identifier (e. (See React docs). You should also avoid doing direct state-mutations, in redux as this will lead to side-effects. Mar 2, 2023 · This practical article walks you through a complete example of removing items from a list in React. filter on the this. When I add data, I do this and it works fine : const Feb 3, 2018 · I have a simple ToDo application written in React. Which "state" is the real items state? Oh, wait, I see, you are pulling the items "state" from the context. com Sep 30, 2022 · Inside the callback, we are calling the filter function, which filters all the values except the one passed to the deleteByValue, hence deleting the passed value. Aug 19, 2020 · React confirmation modals can be tricky, with useEffect and keeping track of shown/hidden, loading/not, and errors. And that will remove the item you want to remove. React way of doing things is to control the UI with state. In ReactJS, you can easily perform CRUD operations by manipulating local state, using forms for data input, and integrating with local storage for persistent data. props. When I click on delete icon it only removes Oct 1, 2021 · Materi kali ini adalah Tutorial React JS Hooks : State Management. indexOf(e. In this article we'll do this, digging into events and state along the way, and ending up with an app in which we can successfully add and delete tasks, and toggle tasks as completed. filter(item => items. [Both are handler of click event]. JOIN: http Aug 9, 2024 · In the world of web development, managing state and user data is crucial for creating responsive, personalized experiences. I pass down my onChangeUpHandler which gets called every time I want to delete a child component from the array. In React, you… How to delete an element from a useState Array in a React Component How to delete an item from a React component’s state array will be the focus of this section. I want to add functionality to delete to-do item when the user clicks on the delete icon. Yeah the key is to delete from the copy not the original, and to know where to use the pattern at all. Managing state is a crucial skill in React because … Jan 31, 2021 · I am trying to write the very first to-do application in REACT. Note: to force React to re-render compo Jun 11, 2024 · Removing an item from an array in React state is straightforward using the filter method. the slice method is working fine when i console log it. But abit confused how to delete it by index. Note that I don't want to May 4, 2018 · When I click on the delete button i. Please do watch the complete video for in-depth information. Jul 23, 2025 · To create an Editable table in react with add, delete, and search filters we will manage row data using useState, implement form inputs for editing, handle add/remove operations with buttons, and use controlled components for real-time editing, deletion, and filtering. state. Deeply hierarchical state is not very convenient to update. Nov 6, 2017 · With React you only need to update the state (i. Want to delete some UI? Delete the items from the array. This method creates a new array with the results of calling a provided function on every element in the calling array. You can add isLoggedIn key to the top level state, set it to true after successful login, to false after logout and check it in componentDidMount method of pages that require authentication. The condition checks if the id of each object in the data array matches the id of the parameter. I implement a handle function that removes the desired task from the tasks array when a delete button is clicked using the filter function. Whenever you alter the state your UI will react to it. Good job Erik! I'm wondering how to clear/remove a state property, say, state. Sep 7, 2018 · As I understand you check user auth on the app level during mounting of some kind of root component. I give the user the possibility to delete points of the polygon, as you can see below in the image by clicking on the X, the point is eliminated. Mar 15, 2019 · Learn how to delete a property from a state object in React using key interpolation and destructuring techniques. e cross or cancel button it should remove the CARD's from the tasklist here tasklist is state variable. Feb 19, 2024 · Deleting an item from an array can confuse those new to the framework when updating the UI in a React app. Otherwise you may get stale values. the classic delete object doesn't seem to be working I am copying the state calling the delete but it is Aug 3, 2019 · I have an array of objects. In this article, we will walk you through how to perform CRUD operations in ReactJS. You can control when to retain and reinitialize it between re-renders. Apr 19, 2022 · I am making cookbook app in React. For example, the TaskApp component below holds an array of tasks in state and uses three different event handlers to add, remove, and edit tasks: Sep 26, 2020 · I am trying to create a simple shopping cart using ReactJS and I figured a potential way out but whenever I click on the remove button I've set it doesn't really remove the items from the cart. Mar 11, 2021 · items. But you shouldn’t change objects that you hold in the React state directly. Deleting by index If you think you can have duplicate values and you want to delete them by the array index, you can achieve it in a similar fashion. To do it, remove state from both of them, move it to their closest common parent, and then pass it down to them via props. Specifically, in my projects the app renders a Graph with the above mentioned data and I want the user to be able to delete its links. Feb 28, 2022 · I'm new to JS, React and TypeScript. Below are different Possible approaches to deleting an See full list on bobbyhadz. useState is a React Hook that lets you add a state variable to your component. Overview of the CRUD App A typical CRUD application allows users to: Create new items Read and display items Update existing items Oct 25, 2021 · Just working on a simple to do list for practice and I would like to be able to click on an item on my list to remove it. delete. The data is flowing all the way through to my database on post & delete however I Dec 13, 2018 · I'm trying to replace whole state or at least delete all properties from it. Or create a HOC to perform this check. the only working is the last index deleted. Sharing State Between Components Sometimes, you want the state of two components to always change together. You can pass the state information to children components as props, but the logic for updating the state should be kept within the component where state was initially created. State is isolated between components. We'll add a button to delete a cat when we display the cat's details, and define a function that gets fired by the Jun 30, 2020 · In React, state refers to a structure that keeps track of how data changes over time in your application. In this WrapperComponent I have the array state which holds the objects I loop over and generate the child components in the JSX code. Thank you for your answer. The component will get re-rendered and the item will disappear from the DOM. You can test it out for yourself! Conclusion Removing an element from a state array is simple and done in one line but needs to be carefully performed without mutating the state in order to follow best react practices. The function to delete the item is in a parent component that I then call in a child component. Handling Delete Actions in Components Efficiently managing delete actions within React components ensures that your application remains responsive and maintains its state accurately. Don't remove keys from complex state objects. it's not deleting the selected. I need to add a function to remove an object from my array without using the "this" keyword. If your question is about changing a React component state, then you should add your state structure and explain more what the problem is. But what happens if we need to remove a key from a state to send an updated object to the server? Let's Jun 4, 2023 · The deletePost function takes an id parameter and uses Axios to make a DELETE request to the JSONPlaceholder API. This should remove the cat from the DOM and redirect the user back to the cats index view. Aug 5, 2023 · I am using redux-persist to persist redux state which works nice. Then update the state. Apr 7, 2024 · To remove a key from a state object, we destructured the key and the rest of the properties and updated the state to only contain the rest of the properties. How can I delete a list item, when clicking on it? Here is my todos. Oct 26, 2020 · I'm facing a problem when I try to delete an item from an array in react state, only one element remains in the array containing all the other item's contents. As your application grows, it helps to be more intentional about how your state is organized and how the data flows between your components. Jun 17, 2019 · To remove a key-value pair from an object in React, you can create a copy of the object using the spread operator and then delete the desired key from the copy. In this article, we would like to show you how to add and remove items from an array used as a state in React component. Although you are assigning the state to 'deck' remember that in Javascript arrays and objects are references. Dynamically Remove a Key from a State Object in React React applications often require dynamically removing a key from an object stored in the state. If you want more items rendered you add items to the array in the state. cs Sep 8, 2021 · New to react and would appreciate any help with getting my components to re render data after a POST or DELETE. What I have works incorrectly. handleDelete(this. Aug 10, 2021 · Here's one way: duplicate the object (so React notices the change), delete the key (maybe this is the JavaScript feature you were missing), and set the state. data. g. Apr 11, 2022 · You just need to filter the data based on the id you have passed. Now that we have a handler built, that is listening for any user to click on Delete, we now have the ability to call the outside API, pass in the delete verb and then have it remove that record from the database. Here's how you can do it: Let's assume you want to remove the key-value pair with the key resumeId from the selectedType object: Apr 9, 2015 · I am trying to find the best way to remove an element from an array in the state of a component. name, 1))). name}) and if you want to clear this input value you have to use this. Mar 26, 2024 · It utilizes React's state management with the useState hook to handle task data. I have the following map, as you should on the map I have a polygon and markers which are the main points of the polygon, below I have the main points of the polygon printed, i. Create React Fetch - GET, PUT, POST, and Delete requests using Hooks and State objects. Working with APIs is a very common thing and delete method is one of them. In this chapter, you’ll learn how to structure your state well, how to keep your state update logic maintainable, and how to share state between distant components. So Oct 2, 2019 · My problem is that when a user edits the fields, then closes modal (without saving), then opens it again, fields are not set to initial value but are shown changed. handleRemoveItem that uses filter() method to remove item with the last index from the Upon user action (button press/toggle), I need to REMOVE / ADD a new key-value pair to the component's state. Here is a sandbox describing the prob Feb 7, 2021 · The delete handler should consume an "id"/index of the data element to remove from state. hrcoxe kugdi kjdi yntosga sebellwy aalcd rox tdxkf snqhx nlbi riluj zjomrbng zzfxya elax krwti