Arrow functions, introduced in ECMAScript 6 (ES6), provide a concise way to write function expressions in JavaScript. They are particularly useful for non-method functions. Here’s a detailed look at how arrow functions work: Syntax The syntax of an arrow function is shorter than traditional function expressions. Here’s the basic syntax: Read more…
React is a popular JavaScript library for building user interfaces, particularly single-page applications where you need a fast and interactive user experience. Here are the main components and concepts in React: Components Functional Components These are JavaScript functions that return React elements. They are typically used for presentational purposes and Read more…
Your React JSX code can be placed in a separate file. Let’s render a special button instead of the default react logo like https://www.weiy.city/2024/08/react-run-your-project-and-see-the-effect/ in our web page. We design the style for the button in a separate file Button.js Then import it in App.js and use it. Here is a new Read more…
Introduction to JSX in React JSX, or JavaScript XML, is a syntax extension for JavaScript used in React to describe the UI structure. It allows developers to write HTML-like code within JavaScript, which gets transformed into React elements. Here’s a brief introduction to JSX: Syntax: JSX is a JavaScript syntax Read more…
We had learned that ReactDOM.render() can render some thing to web page. Now let’s try to change the default content in the root node to render a new object. Remove <App /> and add our new code to show “hello world” on the web page: See the result on your browser after run npm run Read more…
In React, a React element is a JavaScript object that describes a part of the user interface. It contains information about the type of HTML element to create (like div or span), its properties (like attributes and event handlers), and its children. When React renders these elements, it doesn’t directly Read more…
Go to to your project directory: Install additional dependencies: Start the development server: Run the following command to start the development server This will start the React development server and open your new React app in the default web browser.
Setting up a development environment for a React project involves several steps. Install Node.js and npm: Download and install Node.js from the official website. This also installs npm, the Node package manager. If you are a Linux user, you can install this tool by using the terminal. Create a new React Read more…
Introduction This is a small piano game, every white and black button can play a single music note. It will show the keys you pressed in the past times by drawing wave pattern. Gaming platform Tablet or PC. (the performance on a smartphone is average) How to play just press Read more…