JuliaCollections/DataStructures.jl

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Julia implementation of Data structures

Stars: 745
Forks: 261
Open beginner issues: 0
Indexed issues: 122

Dominant language: Julia
License: MIT
Last GitHub push: Aug 19, 2026
Latest indexed: Sep 18, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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122 open issues indexed

Deprecation warning for `_unsetindex!` for Julia 1.14 nightly Open

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

JuliaCollections/DataStructures.jl#986 · Opened Sep 11, 2026
a slighly uncanny `UndefRefError` with default-empty SortedSet Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

JuliaCollections/DataStructures.jl#969 · 6 comments · Opened May 2, 2026
Fixed size container for buffer in CircularDeque Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#958 · 1 comment · Opened Oct 17, 2025
AVL Tree search is "slow" Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#956 · Opened Sep 12, 2025
append!(l1::MutableLinkedList, l2::MutableLinkedList) fails for empty l2 Open

Difficulty 2/5 1-3 hours Newbie friendliness 62/100

JuliaCollections/DataStructures.jl#941 · Opened Jul 4, 2025
132 docstrings not included in the manual Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#930 · Opened Mar 17, 2025
Splay tree amortized time issues Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#923 · 3 comments · Opened Feb 22, 2025
API of SortedContainer Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#918 · 4 comments · Opened Nov 23, 2024
Resolve inconsistencies with functions startof, endof, firstindex, lastindex Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

JuliaCollections/DataStructures.jl#910 · 2 comments · 1 reaction · Opened Aug 13, 2024
append!, prepend!, and other functions on deques Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#909 · Opened Jul 18, 2024
DefaultDict accessor fails when the default is not the value type Open

documentation

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#901 · 4 comments · Opened Mar 25, 2024
show function of binary tree structure (a solution is given). Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#887 · 2 reactions · Opened Dec 29, 2023
Confused about docs Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#885 · 3 comments · Opened Dec 18, 2023
searchsortedbefore - reverse of searchsortedafter Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#879 · 2 comments · Opened Nov 2, 2023
stackoverflow on comparisons for long linked lists Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#878 · Opened Oct 29, 2023
`resize!(::CircularBuffer, n)` is surprising Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaCollections/DataStructures.jl#838 · Opened Dec 13, 2022
Should a isempty accumulator with all elements having a count of 0 return true? Open

requires thought

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#836 · Opened Dec 11, 2022
DisjointSets with Any type never stops Open

bug

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#830 · 1 comment · 1 reaction · Opened Oct 6, 2022
SortedDict missing mergewith Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#827 · 1 comment · Opened Sep 14, 2022
keys(sorteddict) is not an AbstractSet Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaCollections/DataStructures.jl#821 · Opened Jul 17, 2022
Rewrite sorted container constructors in the case of untyped data Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#820 · Opened Jul 17, 2022
possible bug in fenwick.jl Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#813 · 2 comments · 1 reaction · Opened May 21, 2022
How to efficiently modify all values of a SortedDict? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#812 · 2 comments · Opened May 19, 2022
[bug] Type assert of filter fails for empty `CircularBuffer` Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#810 · 1 comment · Opened May 8, 2022
Ill logic of MutableLinkedList.node Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#795 · 1 comment · Opened Mar 24, 2022
leakage in append! functions for two `MutableLinkedList`'s Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#794 · 6 comments · Opened Mar 24, 2022
Set Empty DefaultDict to new struct object may leads to pass by copy Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

JuliaCollections/DataStructures.jl#793 · 1 comment · Opened Mar 20, 2022
`PriorityQueue`s iteration slower than necessary Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

JuliaCollections/DataStructures.jl#792 · 8 comments · Opened Mar 3, 2022
Heaps with Tuples broken Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#786 · 1 reaction · Opened Jan 17, 2022
Allow passing arbitrary Integers to methods for IntDisjointSets Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#785 · 1 comment · Opened Jan 15, 2022
What are the breaking changes between 0.18.0 and 0.19.0 Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#783 · 1 comment · Opened Jan 2, 2022
RFC: patched searchsortedfirst, searchsortedlast, searchsorted, and insorted available in DataStructures.jl? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#782 · 3 comments · Opened Dec 23, 2021
(Feature suggestion) SortedMultiSet Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

JuliaCollections/DataStructures.jl#779 · 1 comment · Opened Dec 17, 2021
New release Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#769 · 4 comments · 2 reactions · Opened Nov 3, 2021
Benchmarks Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#762 · Opened Oct 14, 2021
`PriorityQueue` does not wrap `BinaryHeap` Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

JuliaCollections/DataStructures.jl#761 · Opened Oct 6, 2021
Merge on DefaultOrderedDicts should call the ordered merge function Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 42/100

JuliaCollections/DataStructures.jl#758 · Opened Oct 1, 2021
DisjointSets constructor hangs on Vector{Any} arguments. Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#755 · 4 comments · Opened Sep 7, 2021
Propose changes to the interface for default value to `DefaultDict` Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#751 · Opened Aug 23, 2021
`node_map` in MutableBinaryHeap grows indefinitely Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

JuliaCollections/DataStructures.jl#745 · Opened Jun 24, 2021
Including a mergeable heap type? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

JuliaCollections/DataStructures.jl#744 · Opened Jun 17, 2021
Remove AppVeyor Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#741 · 5 comments · Opened Jun 14, 2021
MutableLinkedList append! iterating infinitely Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#739 · 1 comment · Opened Jun 9, 2021
Run Deque benchmarks, and update documentation Open

Difficulty 2/5 1-2 days Newbie friendliness 38/100

JuliaCollections/DataStructures.jl#737 · 1 comment · 1 reaction · Opened Apr 30, 2021
Implement constructor for Deque from iterable Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#735 · 2 comments · Opened Apr 27, 2021
In indexing data, RTtree search may be far inferior to AVLTree Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#724 · 1 comment · Opened Jan 24, 2021
Creating a DisjointSets forest from a single symbol results in an infinite type loop. Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 40/100

JuliaCollections/DataStructures.jl#719 · Opened Jan 11, 2021
accumulator and nlargest / most common Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#717 · 2 comments · 1 reaction · Opened Dec 20, 2020
rand() for multisets Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

JuliaCollections/DataStructures.jl#706 · 4 comments · Opened Nov 26, 2020
Access underlying `Dict` of `DefaultDict` Open

Pending Clear Need

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

JuliaCollections/DataStructures.jl#705 · 4 comments · Opened Nov 19, 2020

JuliaCollections/DataStructures.jl

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