React
Used for building interactive user interfaces and web applications efficiently. In comparison to using pure JavaScript, it is used to rapidly and effectively create interactive user interfaces and online applications. By building reusable components—which you may conceive of as separate blocks.
Angular
Angular is an open-source frontend framework. It is a JavaScript-based TypeScript programming language that gets rid of extra features and code to make apps lighter and faster. With Angular, you can make Single-Page Applications (SPAs) that are dynamic and engaging by utilizing a variety of modern features such as Templating, Two-way binding, Modularity, RESTful API access, Dependency injection or AJAX support.
JavaScript
JavaScript is a text-based programming language that allows you to make web pages interactive. Programmers worldwide use JS to make dynamic and interactive online apps and browsers. With 97.0% of all websites using it as a client-side programming language, JavaScript is the world's most widely used programming language.
HTML
HTML is the language used to describe the organization of Web pages. Developers can publish online documents containing headings, text, tables, lists, images, etc. thanks to HTML.
CSS
CSS, or Cascading Style Sheets is used to add style to a web page by dictating how a site is displayed on a browser. Thanks to CSS a website site can be divided into columns, have its font, color, size, and spacing changed, as well as have animations and other decorative features added. Unlike HTML or JavaScript, CSS it doesn't produce any new elements and it is used for styling HTML elements.