Logo

Developer learning path

News
JavaScript

React.js in JavaScript

Introduction to JavaScript
What is JavaScript? How it works? History of JavaScript
Basic Concepts in JavaScript
Variables Data Types Operators Control Flow
Functions and Data Structures
Functions Builtin functions Userdefined functions Parameters and Arguments Arrays Indexes and length Array methods
ObjectOriented JavaScript
Object and Properties Constructors Inheritance Prototype
DOM Manipulation
What is DOM? Accessing HTML elements with JavaScript Manipulating HTML elements with JavaScript Events and event handling
Asynchronous JavaScript
Callbacks Promises Async/await Asynchronous data loading AJAX
jQuery
What is jQuery? Selecting and manipulating HTML elements with jQuery jQuery events
Browser APIs
Working with Web Storage Location API Navigator API Geolocation API Canvas API
Expressions and Regular Expressions
Boolean expressions Regular expressions
Debugging and Testing JavaScript
Debugging basics Chrome Developer Tools Unit testing Testing frameworks
JavaScript Libraries and Frameworks
Introduction to libraries and frameworks React.js Angular.js Vue.js Node.js
Deploying JavaScript Applications
Deploying for the Web Hosting options
Ecmascript6 Features
Classes Arrow functions Promises Destructuring of Objects and Arrays Default parameters and Spread Operator
Security and Best Practices in JavaScript
Security basics Best practices for writing safe and maintainable JavaScript code Code optimization techniques
Conclusion
Recap of the course Next Steps.

React.js

66

#description

React.js is a popular JavaScript library primarily used for building user interfaces (UIs). It was developed by Facebook and is now widely used by developers across the world. React.js allows developers to create reusable UI components that can be combined together to make complex user interfaces.

In React.js, components are the building blocks of UI elements. Each component can have its own state and properties, which allow developers to create dynamic and interactive user interfaces. React.js uses a virtual DOM (Document Object Model) to update the UI efficiently and quickly, reducing the need for the browser to re-render the entire page.

Some of the key features of React.js include:
  1. JSX - A syntax extension that allows developers to write HTML-like code in JavaScript.
  1. Components - The building blocks of UI elements and can be reused across the application.
  1. Virtual DOM - A lightweight representation of the actual DOM that React uses to update the UI efficiently.
  1. State and Props - Used to manage data and changes within the components.

React.js is widely used in web development to create complex user interfaces. It is also commonly used with other popular libraries and frameworks such as Redux, Angular, and Vue.js. With the growing demand for dynamic and interactive web applications, React.js has become an essential skill for developers looking to build modern, scalable, and maintainable web applications.

March 25, 2023

If you don't quite understand a paragraph in the lecture, just click on it and you can ask questions about it.

If you don't understand the whole question, click on the buttons below to get a new version of the explanation, practical examples, or to critique the question itself.