Share your thoughts in the 2025 State of Clojure Survey!

Most answered questions in Collections

+2 votes

1 answer

Why does `(str (map identity [1 2]))` return `clojure.lang.LazySeq@`? Is this a bug?

asked Oct 12, 2022 in Collections by Alexander Kouznetsov

0 votes

1 answer

How read list of files, read all data from and compare with another list of keys?

asked Oct 3, 2022 in Collections by Aleskert

+6 votes

1 answer

`update-keys` and `update-vals` missing the `& args` from `update`

asked Aug 9, 2022 in Collections by Aleksander Madland S

+1 vote

1 answer

SortedMap not IEditableCollection

asked Aug 1, 2022 in Collections by Erik Assum

0 votes

1 answer

Cast to Map$Entry Exception When Trying to (Into {}) After Sequence Operations

asked May 8, 2022 in Collections by Ho0man

+2 votes

1 answer

Should clojure.lang.Range/LongRange be made to implement clojure.lang.Reversible?

asked May 1, 2022 in Collections by Josh

+10 votes

1 answer

Common patterns for optional fields interact poorly with spec

asked Feb 15, 2022 in Collections by Joshua Suskalo

0 votes

1 answer

subvec doesn't preserve metadata

asked Feb 10, 2022 in Collections by Yehonathan Sharvit

+2 votes

1 answer

Somewhat confusing sorted-set behavior

asked Dec 23, 2021 in Collections by David Russell

+4 votes

1 answer

Vector equiv() causes lazy seqs to be fully realized

asked Oct 15, 2021 in Collections by yuhan0

+1 vote

1 answer

Would it be funner if clojure.set/difference worked better with sequences?

asked Aug 25, 2021 in Collections by Harold

0 votes

1 answer

bug in walker with array-maps

asked Feb 27, 2021 in Collections by Mike Travers

+2 votes

1 answer

Why does (conj) returns vector but (conj nil 1) returns list and (conj nil) returns nil?

asked Jan 17, 2021 in Collections by didibus

+1 vote

1 answer

Couples of consecutive elements in a coll

asked Dec 24, 2020 in Collections by Davide Taviani

+1 vote

1 answer

Strange behavior of apply vector with a function as element

asked Apr 26, 2020 in Collections by Philippe Poncet

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