Updating

Snapshot Testing

Understand how Jest's snapshot testing captures serialized output over time, when it's a good fit, and how to manage snapshot files responsibly.

Maps in Elixir

Understand Elixir's key-value data structure, how to build, update, and pattern-match against maps, and when to reach for structs instead.

Updating Documents

Learn how to modify existing documents using updateOne, updateMany, replaceOne, update operators like $set and $inc, and upserts.

Introduction to Signals

Understand Angular Signals — the reactive primitive that wraps a value and notifies dependents on change, forming the foundation of Angular's modern change-det…