Clojure·Clojure essentials

Sequences

The sequence abstraction covers all collections and supports lazy pipelines.

Advanced 10 min read Lesson 4 of 150 Challenge included
What you will be able to do
  • Use seq functions uniformly.
  • Use -> and ->> for threading.
  • Laziness defers work.

In plain English

The sequence abstraction covers all collections and supports lazy pipelines.

  • Use seq functions uniformly.
  • Use -> and ->> for threading.
  • Laziness defers work.
seqs.cljCLOJURE
(println (->> [12 18 9]
               (filter #(>= % 15))
               (map #(* % 2))
               (reduce +)))
Your turn

Explain it back

Easy

Answer from memory: What does ->> do?

TEXT · starter
Your answer…
Check your understanding before moving on.
Knowledge checkQuestion 1

What does ->> do?

Select an answer to continue
Study tools

Make it yours.

Keep a private note for this lesson, then turn the key ideas into flashcards you can revisit.

Sign in to save notes and flashcards.Both are private to your account and stay with your progress.
Sign in
Finished reading?

Lock in what you just learned.

Mark this lesson complete to save your place and move one step closer to the certificate.

Next: Small program
Lesson 4 of 150 · 0% of course