Lazy Sequences & Performance
Learn about lazy sequences, how they work, and their role in optimizing performance for large data sets.
What is Laziness?
Imagine you have a long list of tasks, but you only do each task right before you need its result. This is the core idea behind laziness in programming!
A lazy computation doesn't run until its result is actually required. It waits until the last possible moment.
Clojure's Lazy Sequences
In Clojure, this concept is often applied to sequences. A lazy sequence is a sequence whose elements are computed only when they are accessed.
- They act like regular sequences.
- But their elements are generated "on demand".
- This is super useful for large or even infinite datasets!
All lessons in this course
- First-Class & Higher-Order Functions
- Immutability & Persistent Data
- Lazy Sequences & Performance
- Transducers for Composable Transformations