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This article is to share with you about the advantages and disadvantages of react. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The advantages are: 1, it becomes easier to create dynamic Web applications; 2, reusable components; 3, performance enhancement; 4, good compatibility; 5, friendly to SEO, etc. Disadvantages are: the goal of React is UI components, not a complete framework, basically need to add ReactRouter and Flux to write large-scale applications.

The operating environment of this tutorial: Windows7 system, react17.0.1 version, Dell G3 computer.

React is a set of JavaScript Web libraries built by Facebook and mainly used to build high-performance and responsive user interfaces. React is responsible for solving one of the common challenges faced by other javascript frameworks, namely, the handling of large data sets. With the ability to use virtual DOM and use the patch installation mechanism to re-render only the dirty part of the DOM when changes occur, React is able to perform much faster than other frameworks.

Advantages of React

1. It becomes easier to create dynamic Web applications

Creating a dynamic web application that specifically uses HTML strings is tricky because it requires complex coding, but React JS solves the problem and makes it easier. It provides less coding and more functionality. It leverages JSX (JavaScript extension), a special syntax that allows HTML quotes and HTML tag syntax to render specific subcomponents. It also supports building machine-readable code.

2. Reusable components

A ReactJS web application consists of several components, each with its own logic and controls. These components are responsible for outputting a small piece of reusable HTML code that can be reused wherever it is needed. Reusable code helps make applications easier to develop and maintain. These components can be nested with other components, allowing complex applications to be built with simple building blocks. ReactJS uses a virtual DOM-based mechanism to populate data in HTML DOM. The virtual DOM works quickly because it changes only a single DOM element instead of reloading the complete DOM every time.

3. Performance enhancement

ReactJS improves performance through virtual DOM. DOM is a cross-platform and programmatic API that handles HTML, XML, or XHTML. Most developers encounter this problem when updating DOM, which degrades the performance of the application. ReactJS solves this problem by introducing virtual DOM. The React virtual DOM exists entirely in memory and is a representation of the web browser DOM. Therefore, when writing React components, we did not write directly to DOM. Instead, the virtual components we write convert react to DOM for smoother and faster performance.

4. Good compatibility

For example, RequireJS is used to load and package, while Browserify and Webpack are suitable for building large applications. They make those difficult tasks less daunting.

5. Famous for its SEO friendliness

The traditional JavaScript framework has a problem when dealing with SEO. Search engines often have trouble reading a large number of javascript applications. Many web developers often complain about this problem. ReactJS solves this problem and helps developers navigate easily on a variety of search engines. This is because the response .js application can run on the server, while the virtual DOM will be rendered as a regular web page and returned to the browser.

6. Isomorphism, pure javascript

Because search engine crawlers rely on server responses rather than JavaScript execution, pre-rendering your application helps search engine optimization.

7. the scope of the test code

ReactJS applications are very easy to test. It provides a scope in which developers can test and debug their code with the help of local tools.

React's disadvantages:

It is not suitable to make a complete framework alone

React is aimed at UI components and can usually be used in combination with other frameworks. Currently, it is not suitable to make a complete framework alone. React cannot be called a complete framework even with the combination of Flux, such as the AJAX that you want to use Promise? I'm sorry I don't have it. Find a ready-made library. And there are far fewer third-party components than Angular. React itself is just a V, so if a large project wants a complete framework, it may also need to introduce something related to Flux and route. And Angular offers a lot more than React in this respect.

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