Today in this blog, we will aware about How to remove array object elements in reactsjs. So, without wasting any time lets do it but lets recap what is exactly React js.
React
Certainly, Reactjs is a JavaScript library developed by Facenook for building user interfaces. It allows developers to create reusable UI components and effciently manage the state of their applications. Here are some key aspects of Reactjs.
Component-Based Architecture: ReactJS follows a component-based architecture, where the user interface is divided into small, reusable components. Components encapsulate their own logic, state, and rendering, making it easier to build and maintain complex user interfaces.
Virtual DOM: ReactJS uses a virtual representation of the DOM (Document Object Model), known as the Virtual DOM. When the state of a component changes, React updates the Virtual DOM.
JSX: JSX is a syntax extension for JavaScript used in React. It allows developers to write HTML-like code within JavaScript, making it easier to describe the structure and appearance of components. JSX code is transpiled to regular JavaScript using tools like Babel before being executed in the browser.
Hooks: React introduced Hooks in version 16.8 as a way to use state and other React features in functional components. Hooks allow developers to write reusable logic and manage state within functional components without the need for class components. The most commonly used hooks are useState for managing state and useEffect for handling side effects such as fetching data or subscribing to events.
React Router: React Router is a popular routing library for React applications. It enables developers to create single-page applications with multiple views and handles routing between different components based on the URL.
State Management: React provides a flexible ecosystem of state management solutions. While React's built-in state management (useState ) is suitable for managing local component state, more complex applications may benefit from additional state management libraries like Redux. These libraries help manage global application state and provide predictable ways to update and access the state.
ReactJS has gained widespread popularity due to its performance, reusability, and declarative approach to building user interfaces. It has large community.
NOTE - Here we will Tailwind CSS for designing.
Here we first make a file as called ElementRemove.jsx.
To remove array elements in ReactJS, you need to update the state of the component that holds the array and re-render the component with the updated state. Here are a few approaches you can take to remove array object elements in ReactJS:
Using filter(): You can use the filter() method to create a new array that excludes the elements you want to remove. This method does not mutate the original array. Here's an example:
import React, { useState } from "react";
function ElementRemove() {
const [myArray, setMyArray] = useState([
{ id: 1, name: "mango" },
{ id: 2, name: "apple" },
{ id: 3, name: "banana" },
]);
const removeElement = (id) => {
const updatedArray = myArray.filter((item) => item.id !== id);
setMyArray(updatedArray);
};
return (
<div>
<div className="grid grid-cols-1 lg:grid-cols-1 ">
<div className="text-center md:grid-rows-6">
<div className="mt-36 ml-24">
{myArray.map((item) => (
<div key={item.id}>
{item.name}
<button
className="border ml-6 pr-2 pl-2 mb-2"
onClick={() => removeElement(item.id)}>
x
</button>
</div>
))}
</div>
</div>
</div>
</div>
);
}
export default ElementRemove;
In this example, each element in the myArray state is rendered with a "Remove" button. When the button is clicked, the removeElement function is called, which filters out the element with the specified id and updates the state with the new array.
Output
.png)
Disclaimer
All tutorials are for informational and educational purposes only and have been made using our own routers, servers, websites and other vulnerable free resources. we do not contain any illegal activity. We believe that ethical hacking, information security and cyber security should be familiar subjects to anyone using digital information and computers. Hacking Truth is against misuse of the information and we strongly suggest against it. Please regard the word hacking as ethical hacking or penetration testing every time this word is used. We do not promote, encourage, support or excite any illegal activity or hacking.
.png "How to add array object elements in react js")
.png)
.png)
.png)
.png)
