Open the web app sandbox at https://www.weiy.city/functions/react-sand-box/. Then set backgroundColor for h1 element in app.js: For example, you can write the following code on the js file. The real-time effect will be at the right part.
We had add a new tool mp4 shrinker. MP4 Shrinker is a powerful and easy-to-use web-based tool designed to compress 4K MP4 videos into three lower resolutions: 1080p, 720p, and 480p. This online platform offers a quick and efficient way to reduce file sizes without losing essential video quality, making it ideal for Read more…
Can you write a dual-state button using React state? write your code and run it in your development environment or using our sandbox: Reference answer App.js: Can you write a tool which can help users to write text on image to generate a new meme image? Example: https://www.weiy.city/functions/static-meme-generator Related post:
The useEffect hook is a fundamental part of React that allows you to perform side effects in function components. Side effects include data fetching, subscriptions, manual DOM manipulations, and more. Here’s an in-depth look at how useEffect works and how to use it effectively. Importing useEffect First, you need to import useEffect from the react library: Basic Usage Read more…
In React, the concepts of “map” and “key” are essential for efficiently rendering lists of elements. Here’s a brief introduction to each: Map Function in React The map function is a JavaScript array method that creates a new array populated with the results of calling a provided function on every element in Read more…
Conditional rendering in React allows you to render different UI elements or components based on certain conditions. Here are the main ways to achieve conditional rendering in React: Using JavaScript Conditional Operators if/else statements: Use if/else statements to decide what to render. Ternary Operator: Use the ternary operator for inline Read more…
In React, events are similar to how events work in regular DOM elements but have some key differences. Here are the main points to understand about handling events in React: Event Naming In React, event names are written in camelCase, rather than lowercase. For example, instead of using onclick, you use onClick. Read more…
React Props (short for properties) are a mechanism for passing data from one component to another in React. They are used to transfer information from a parent component to its child components, making components reusable and dynamic. Immutability Props are immutable, meaning they cannot be modified by the receiving component. Read more…
React state is a key concept for managing data within a component. It allows you to create interactive and dynamic user interfaces by keeping track of the changes in data over time. Here’s an in-depth look at React state: State in Class Components In class components, state is a built-in Read more…