Overview of Persistent Collections

- Intro | Follow-up | News

- Discussion on community relations

- Immutable Persistent Collections

List vs Vector

- Linked list vs tree implementation

Map vs Set

- Key can be anything

- KV | Unique KV

- Relational operations on set are outside of core

Seq library

- ISeq (first, rest, cons)

- Interop with Java utterable

- Functions are written to work against the Seq interface

- Seq in, Seq out

Immutability and Persistence

- What is it?

- Why is it important?

- Implementation

Lazy collections

- What does it mean to be lazy?

- What does it mean to hold on the head?

Eager operations

- Sometimes you need side effects so you cannot be lazy

- Doall, doseq

Persistent vs. Transient

- Performance

SPECTER - Nathan Marz

- Ensure output format of collection operations is controlled

- Editing operations

Community contributed collections - shout out to

- Chris Houser - Data.zip

- Michał Marczyk - Ctries and AVL

- Mark Engelberg - Priority maps

- Lean Hash Maps Peter Schuck

See the podcast web site http://defn.audio for links