Skip to content

Swap an example for keep #259

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jan 17, 2025
Merged

Swap an example for keep #259

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 3 additions & 2 deletions examples/keep.janet
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,8 +1,9 @@
# returns an array of truthy results of predicate
(keep identity [false :x nil true]) # -> @[:x true]

# keep values > 1, equivalent to filter
(keep (fn [x] (when (> x 1) x)) @[0 1 2 3]) # -> @[2 3]

# for all members > 2, keep the square
(keep (fn [x] (when (> x 2) (* x x))) [0 1 3 4 5]) # -> @[9 16 25]

# operates on values in table
(keep (fn [x] (when (> x 1) (* x x))) @{:foo 1 :bar 2 :baz 3}) # -> @[4 9]
Loading