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C++ Basics for JavaScript Developers

React Native 2026: Bridgeless Architecture & JSI

C++ for JS Devs

Don't be afraid of C++. For JSI, you only need the basics:

  • Headers (.h): Where you declare functions.
  • Implementation (.cpp): Where you write the logic.
  • Memory Management: Understanding pointers and references.
  • The Standard Library (STL): Using vectors and maps.

In this lesson, we write our first C++ class that will eventually be exposed to JS.