React JS and React are often used interchangeably to refer to the same thing: the open-source JavaScript library for building user interfaces, primarily web applications. Both terms describe the library created and maintained by Facebook, which is used to build reusable UI components using a declarative approach.
In other words, React JS and React are essentially the same thing, and you can use the terms interchangeably to describe the popular JavaScript library for building UI components.
Here is the overview of the React library and its key features.
| Feature | React / React JS |
|---|---|
| Definition | A JavaScript library for building user interfaces. |
| Purpose | Managing component state and rendering efficiently. |
| Usage | Creating reusable UI components for web and mobile applications. |
| Created by | |
| Component-Based | Yes, focuses on building reusable components. |
| Declarative Approach | Simplifies UI updates and makes code more predictable. |
| Virtual DOM | Efficiently updates and renders the DOM when data changes. |
| Syntax | JavaScript with optional JSX syntax. |
| Ecosystem | Compatible with various front-end libraries and frameworks. |
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