Lecture
This lecture introduces Scala parallel collections, including the parallel counterparts of sequential traits and how to write parallelism-agnostic code using generic collection traits. It covers converting sequential collections to parallel, parallelizable collections like ParArray and ParVector, and computing set intersection. The lecture also discusses side-effecting operations, avoiding mutations without synchronization, and concurrent modifications during traversals. It concludes with the exception to these rules using TrieMap for efficient state grabbing in parallel operations.