apache/arrow-js

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Official JavaScript implementation of Apache Arrow

Stars: 112
Forks: 23
Open beginner issues: 0
Indexed issues: 95
Avg merge: 17h 55m
Merged PRs (30d): 10

Dominant language: TypeScript
License: Apache-2.0
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 14, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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`Data.valueOffsets` is longer than `length + 1` after an IPC round trip Open

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

apache/arrow-js#484 · 1 comment · 1 reaction · Opened Sep 18, 2026
ENOENT: no such file or directory during install Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

apache/arrow-js#468 · 2 comments · Opened Jul 27, 2026
Show SHA-256 or SHA-512 in the vote email template Open

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

apache/arrow-js#461 · Opened Jul 17, 2026
No extension type registry — consumers must manually decode FixedSizeBinary Open

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

apache/arrow-js#423 · 1 reaction · Opened Apr 10, 2026
Date32 getDateDay silently loses precision for dates outside ~1685-2255 Open

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

apache/arrow-js#422 · Opened Apr 10, 2026
Timestamp get() throws for valid data outside Number.MAX_SAFE_INTEGER range Open

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

apache/arrow-js#421 · 1 reaction · Opened Apr 10, 2026
RecordBatchStreamWriter.write() silently drops batches on schema mismatch Open

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

apache/arrow-js#388 · Opened Feb 26, 2026
Add (Field|Schema).withMetadata() helper to match other Arrow bindings Open

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

apache/arrow-js#333 · 1 comment · Opened Nov 16, 2025
Writing a file encoded with tableToIPC() can get corrupted such that passing it to tableFromIPC() causes the thread to hang Open

apache/arrow-js#315 · 3 comments · 1 assignee · Opened Oct 22, 2025
Documentation for how to use IPC RecordBatch compression Open

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

apache/arrow-js#298 · 2 comments · 3 reactions · Opened Oct 1, 2025
tableFromIPC incorrectly types columns in schema when there are duplicate column names Open

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

apache/arrow-js#288 · 1 comment · Opened Sep 29, 2025
Jupyter integration support Open

Type: enhancement

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

apache/arrow-js#245 · 9 comments · Opened Aug 16, 2025
`generated_recursive_nested` integration test failing (Rust producing) Open

Type: bug

Difficulty 4/5 3-5 days Newbie friendliness 32/100

apache/arrow-js#205 · Opened Jul 14, 2025
ci: Add benchmarking CI Open

Type: enhancement

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

apache/arrow-js#203 · Opened Jul 8, 2025
Several generics default to `any` instead of their base type Open

Type: bug

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

apache/arrow-js#192 · 4 comments · Opened Jul 2, 2025
Link API docs to source files Open

Type: enhancement

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

apache/arrow-js#180 · 13 comments · Opened Jun 28, 2025
Add version switcher to documentation Open

Type: enhancement

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

apache/arrow-js#170 · 1 comment · Opened Jun 19, 2025
Remove google-closure-compiler dependency Open

Type: enhancement

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

apache/arrow-js#153 · 1 comment · Opened Jun 12, 2025
Add .github/CODEOWNERS Open

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

apache/arrow-js#6 · Opened May 14, 2025
[JS] Add support for StringView types Open

Type: enhancement

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

apache/arrow-js#44 · 5 comments · 5 reactions · Opened Apr 11, 2025
[JS] Support REE Open

Type: enhancement

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

apache/arrow-js#47 · 2 comments · 2 reactions · Opened Oct 23, 2024
[JS] Table.toArray() allocates a large array. Open

Type: enhancement

apache/arrow-js#48 · 1 reaction · 1 assignee · Opened Sep 27, 2024
[JavaScript] Can't create table if it contains an array of strings ("Unable to infer Vector type") Open

Type: bug

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

apache/arrow-js#50 · 3 comments · 1 reaction · Opened Sep 16, 2024
[JavaScript][Integration] IPC files do not embed a valid IPC stream Open

Type: bug

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

apache/arrow-js#51 · Opened Aug 26, 2024
[JS][Packaging] npm package is bloated with seemingly unnecessary code/deps Open

Type: enhancement

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

apache/arrow-js#52 · 2 comments · 1 reaction · Opened Aug 5, 2024
[JS] Regression in roundtripping JS Date objects from apache-arrow@15 to apache-arrow@16 Open

Type: bug

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

apache/arrow-js#53 · 1 comment · Opened Jul 8, 2024
[JS] apache-arrow doesn't work on platform restricting eval/new Function Open

Type: bug

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

apache/arrow-js#54 · 6 comments · 1 reaction · Opened Jun 29, 2024
[JS] version-independent check that a table is an arrow table Open

Type: enhancement

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

apache/arrow-js#56 · 2 comments · Opened Jun 5, 2024
[JS][Release] Stop re-testing JS packages when uploading to npm Open

Type: enhancement

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

apache/arrow-js#57 · 3 comments · Opened May 14, 2024
[JS] Use transfer instead of memcpy Open

Type: enhancement

apache/arrow-js#58 · 2 comments · 1 assignee · Opened Apr 25, 2024
[JS] Creating element with JS arrays returns "0" instead of "undefined" for missing elements. Open

Type: bug

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

apache/arrow-js#59 · 1 comment · Opened Apr 9, 2024
[JS] Include Node.js bindings to Apache Parquet C++ library Open

Type: enhancement

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

apache/arrow-js#60 · 2 comments · 2 reactions · Opened Apr 3, 2024
[Python][JS] Examples of serializing arrow from python through ipywidgets to JS Open

Type: usage

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

apache/arrow-js#62 · 4 comments · Opened Mar 14, 2024
[JS] Avoid circular dependencies in apache-arrow Open

Type: enhancement

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

apache/arrow-js#63 · 2 comments · 1 reaction · Opened Mar 13, 2024
[JS] Create simple example of JavaScript Node.js HTTP GET Arrow server Open

Type: enhancement

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

apache/arrow-js#64 · Opened Mar 11, 2024
[JS] Remove unnecessary production dependencies Open

Type: enhancement

apache/arrow-js#65 · 5 comments · 1 assignee · Opened Feb 17, 2024
[JS] `vectorFromArray()` can't create Int64 from Number Open

javascript Type: bug

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

apache/arrow-js#66 · 1 comment · Opened Feb 12, 2024
[JS] Compatibility Issue with Apache Arrow Library in Angular Application Open

Type: bug

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

apache/arrow-js#67 · 10 comments · Opened Feb 7, 2024
Try node next module resolution Open

Type: enhancement

apache/arrow-js#69 · 1 assignee · Opened Jan 5, 2024
[JS] implement subArray for vectors Open

Type: enhancement

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

apache/arrow-js#71 · 1 reaction · Opened Dec 8, 2023
[Integration][JS] JS implementation is slow to build Open

Type: enhancement

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

apache/arrow-js#72 · 6 comments · Opened Dec 6, 2023
[JS] The package.json file incorrectly specifies sideEffects: false Open

Type: bug

apache/arrow-js#73 · 8 comments · 2 reactions · 1 assignee · Opened Nov 28, 2023
[JS] [Benchmarking] JavaScript microbenchmarks display regressions Open

Type: bug

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

apache/arrow-js#74 · Opened Nov 21, 2023
[CI][JS] Javascript Release verification tests are extremely slow Open

Type: bug

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

apache/arrow-js#75 · 3 comments · Opened Oct 9, 2023
[JS] Build on Vercel for @apache-arrow/ts fails Open

Type: bug

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

apache/arrow-js#76 · 2 comments · Opened Oct 4, 2023
[JS] Decimal-type conversions result in errors/inaccuracies in Arrow JS Open

Type: bug

apache/arrow-js#77 · 7 comments · 3 reactions · 1 assignee · Opened Sep 28, 2023
[JS] Improve JS documentation on how to read/deserialize arrow data Open

Type: enhancement

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

apache/arrow-js#78 · 3 comments · 9 reactions · Opened Sep 25, 2023
arrow.Table creation in Javascript Open

Type: usage

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

apache/arrow-js#80 · 1 comment · Opened May 31, 2023
[JS] Ergonomics for the Decimal type via the JavaScript bindings Open

Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 32/100

apache/arrow-js#81 · 2 comments · 7 reactions · Opened May 24, 2023
[JS][C Data Interface] Use wasm memory pool and expose C interface Open

Type: usage

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

apache/arrow-js#82 · 6 comments · Opened May 22, 2023

apache/arrow-js

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