Owner

immutable-js

2 indexed repositories · View on GitHub

immutable-js
Immutable persistent data collections for Javascript which increase efficiency and simplicity.

TypeScript · 33030 stars
immutable-devtools
Browser custom formatter for Immutable-js values.

JavaScript · 1 star

Beginner friendly Everything

Open All

Update function does not work with __proto__ key Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

immutable-js/immutable-js#2283 · Opened Sep 7, 2026
Feature request: argMinBy Open

Difficulty 3/5 1-2 days Newbie friendliness 68/100

immutable-js/immutable-js#2221 · 2 comments · Opened Jun 17, 2026
MultiSets Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

immutable-js/immutable-js#2216 · 1 comment · Opened Jun 11, 2026
Performance Improvements for Map Open

performance

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

immutable-js/immutable-js#2201 · 2 comments · Opened Jun 1, 2026
`fromJS`'s type is missing symbols Open

Difficulty 2/5 1-3 hours Newbie friendliness 72/100

immutable-js/immutable-js#2197 · Opened May 30, 2026
use non deprecated way to get record name Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

immutable-js/immutable-devtools#10 · Opened Apr 22, 2026
maybe delay injecting the script? Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

immutable-js/immutable-devtools#9 · Opened Apr 22, 2026
`Seq.Indexed.concat` doesn't return `Seq.Indexed` with multiple collections Open

Difficulty 3/5 1-2 days Newbie friendliness 50/100

immutable-js/immutable-js#2161 · Opened Dec 12, 2025
Make private property private instead of underscore-prefixed Open

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

immutable-js/immutable-js#2141 · 4 comments · Opened Sep 15, 2025
Incompatibility with jest-mock-extended Open

Difficulty 3/5 1-2 days Newbie friendliness 43/100

immutable-js/immutable-js#2137 · 1 comment · Opened Aug 10, 2025
Issue with "remove" and plain array Open

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

immutable-js/immutable-js#2106 · Opened May 10, 2025
Fix package.json warning Open

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

immutable-js/immutable-js#2064 · Opened Mar 8, 2025
Generate d.ts with build Open

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

immutable-js/immutable-js#2056 · Opened Feb 23, 2025
Migrate to full ESM Open

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

immutable-js/immutable-js#2053 · 1 reaction · Opened Feb 22, 2025
Migrate codebase to Typescript Open

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

immutable-js/immutable-js#2051 · Opened Feb 22, 2025
Implement `NotEmptyCollection` definition types Open

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

immutable-js/immutable-js#2037 · Opened Dec 2, 2024
Calling toJS on the result of an Immutable map causes the Immutable map to be converted to a JS object when being passed as a prop to a React component inside of the map function Open

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

immutable-js/immutable-js#2029 · 6 comments · Opened Oct 25, 2024
Strange edge case with Map.update(...) Open

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

immutable-js/immutable-js#1984 · 3 comments · Opened Feb 14, 2024
Enhancement: Custom equals Open

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

immutable-js/immutable-js#1969 · 8 comments · Opened Nov 26, 2023
Extract sort function from Collection types Open

immutable-js/immutable-js#1961 · 7 comments · 1 assignee · Opened Aug 28, 2023
Typescript: Implement `MapOf::merge ` Open

typescript

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

immutable-js/immutable-js#1960 · 1 comment · 1 reaction · Opened Aug 28, 2023
support deno Open

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

immutable-js/immutable-js#1949 · 2 comments · Opened Aug 1, 2023
Flow type definition outdated, not working with last year changes Open

flow

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

immutable-js/immutable-js#1943 · 1 comment · 3 reactions · Opened Jun 19, 2023
Record with more keys should be assignable to Record with less keys if type is a subset of the first one Open

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

immutable-js/immutable-js#1934 · 1 reaction · Opened Feb 7, 2023
Supporting wildcards Open

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

immutable-js/immutable-js#1912 · 8 comments · Opened Oct 1, 2022
List.delete() returns an empty array Open

with-mutations

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

immutable-js/immutable-js#1901 · 4 comments · 1 reaction · Opened Apr 21, 2022
Example implementations for hashCode() in documentation Open

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

immutable-js/immutable-js#1896 · Opened Mar 7, 2022
Immutable.Map hashCode collision when swapping the boolean values in an object Open

bug

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

immutable-js/immutable-js#1894 · 3 comments · 2 reactions · Opened Feb 10, 2022
Would be nice to have OrderedMap and OrderedSet be indexed Open

API-improvement has quickfix

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

immutable-js/immutable-js#1893 · 4 comments · 2 reactions · Opened Jan 5, 2022
Collection.Indexed implementations inconsistently handle non-integer indices Open

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

immutable-js/immutable-js#1890 · 2 comments · Opened Nov 12, 2021
Immutable v4 Records, confusing behavior with undefined Open

bug

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

immutable-js/immutable-js#1889 · 1 comment · 2 reactions · Opened Nov 2, 2021
Immutable.Map and Immutable.Ordered.Map from { [p: string]: T }[] Open

typescript

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

immutable-js/immutable-js#1885 · 1 comment · Opened Oct 23, 2021
types are wrong for using plain arrays instead of iterable Open

typescript

Difficulty 3/5 1-2 days Newbie friendliness 30/100

immutable-js/immutable-js#1884 · 2 comments · Opened Oct 23, 2021
Flow Union Types do not work with RecordOf Open

flow

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

immutable-js/immutable-js#1882 · Opened Oct 18, 2021
Better Type Inference Open

typescript

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

immutable-js/immutable-js#1812 · 17 comments · 1 reaction · Opened May 14, 2021
mergeIn throws `Cannot read property 'merge' of null` when mergeIn on keyPath that has a null value Open

Difficulty 3/5 1-2 days Newbie friendliness 20/100

immutable-js/immutable-js#1807 · 3 comments · Opened Feb 2, 2021
Mutating the [[Prototype]] of an object will cause your code to run very slowly; Open

awaiting-response

Difficulty 5/5 Over a week Newbie friendliness 18/100

immutable-js/immutable-js#1805 · 1 comment · Opened Jan 21, 2021
Time complexities to every function Open

documentation

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

immutable-js/immutable-js#1796 · 5 reactions · Opened Oct 23, 2020
Feature request: Priority queue / self-sorting list [can PR] Open

awaiting-response enhancement

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

immutable-js/immutable-js#1791 · 8 comments · 3 reactions · Opened Oct 8, 2020
Inconsistency logic behavior between mergeWith & mergeDeepWith Open

documentation

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

immutable-js/immutable-js#1774 · 4 comments · Opened Jul 7, 2020
Regression v4: Filtering via skipUntil vs findIndex/takeLast Open

performance

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

immutable-js/immutable-js#1770 · 2 comments · Opened May 5, 2020
Immutable Js in Typescript Open

typescript

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

immutable-js/immutable-js#1759 · 1 comment · 3 reactions · Opened Feb 6, 2020
Equivalent ImmutableJS object seems to have high memory usage Open

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

immutable-js/immutable-js#1754 · 1 reaction · Opened Dec 17, 2019
updateWhere to update a sublist Open

enhancement

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

immutable-js/immutable-js#1752 · Opened Nov 26, 2019
Feature request: API for memoizing unchanged collection subtrees in .map, .filter, etc Open

enhancement

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

immutable-js/immutable-js#1750 · 3 comments · Opened Nov 10, 2019
Several issues with `immutable.is()` Open

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

immutable-js/immutable-js#1737 · 1 comment · 2 reactions · Opened Sep 26, 2019
Inconsistency of value equality check of zero Open

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

immutable-js/immutable-js#1736 · 1 comment · 2 reactions · Opened Sep 26, 2019
Equals not used when values updated Open

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

immutable-js/immutable-js#1732 · 13 comments · Opened Sep 7, 2019
Record definitions are sloppy Open

flow

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

immutable-js/immutable-js#1722 · 1 comment · 1 reaction · Opened Jul 3, 2019
URGENT: Set on immutable record class returns a records without extended methods Open

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

immutable-js/immutable-js#1718 · 3 comments · 1 reaction · Opened Jun 15, 2019

Showing the newest 100

This page lists what was indexed most recently. Advanced filter has the whole inventory, narrowed by language, difficulty and how long a task takes.

Open advanced filter

immutable-js

Showing the newest 100

Get new issues in your inbox