SERIALIZATION IS THE SECRET

Summary from the TLDR Web Dev newsletter

JavaScript is a mutable programming language, while Elixir leans towards immutability. While both languages appear to have similar variable assignment behavior, Elixir achieves this through "rebinding," creating new variables with new values instead of mutating existing ones. This immutable approach, along with Elixir's process-based concurrency, eliminates the possibility of race conditions and unexpected state changes that are common in mutable languages.