Common JAX Gotchas Explained — Stop Making These Mistakes || Coding Hives

Learn the MOST COMMON JAX mistakes beginners make — and how to fix them FAST! In this step‑by‑step Colab tutorial, I walk you through the sharp edges of JAX: pure functions, JIT issues, .at updates, class methods, dynamic shapes, random numbers, and more. Whether you're coming from NumPy, PyTorch, or TensorFlow, this video will save you HOURS of debugging. Topics Covered Pure functions in JAX Why printing inside jit behaves weird Global variables inside JAX No in‑place updates (arr[1] = ... errors) Correct .at updates JIT with class methods (3 strategies) Out‑of‑bounds indexing Lists vs arrays