Introduction to React
React is a popular open-source, component-based front-end JavaScript library. It was developed by Meta (formerly Facebook) in 2013 and is maintained by Meta along with a massive community of individual developers and corporations.
Key Core React Concepts:
- Declarative UI: React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes.
- Component-Based: Build encapsulated components that manage their own state, then compose them to make complex UIs.
- Virtual DOM: React creates an in-memory data structure cache, computes the differences, and then updates the browser's displayed DOM efficiently.