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https://issues.apache.org/jira/browse/ARROW-1903?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul Taylor resolved ARROW-1903.
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Resolution: Fixed
Fix Version/s: JS-0.3.0
resolved in [https://github.com/apache/arrow/pull/1482]
> [JS] Fix typings consuming apache-arrow module when noImplicitAny is false
> --------------------------------------------------------------------------
>
> Key: ARROW-1903
> URL: https://issues.apache.org/jira/browse/ARROW-1903
> Project: Apache Arrow
> Issue Type: Bug
> Components: JavaScript
> Affects Versions: 0.8.0
> Reporter: Paul Taylor
> Assignee: Paul Taylor
> Priority: Major
> Fix For: JS-0.3.0
>
>
> The TypeScript compiler has a few bugs that raise compiler errors when valid
> strict-mode code is compiled with some of the strict mode-settings disabled.
> Since we ship the TS source code in the main `apache-arrow` npm module,
> consumers will encounter the following TypeScript compiler errors under these
> conditions:
> {code}
> # --strictNullChecks=true, --noImplicitAny=false
> vector/numeric.ts(57,17): error TS2322: Type 'number' is not assignable to
> type 'never'.
> vector/numeric.ts(61,35): error TS2322: Type 'number' is not assignable to
> type 'never'.
> vector/numeric.ts(63,18): error TS2322: Type '0' is not assignable to type
> 'never'.
> vector/virtual.ts(98,38): error TS2345: Argument of type 'TypedArray' is not
> assignable to parameter of type 'never'.
> {code}
> The fixes are minor, and I'll add a step in the unit tests to validate the
> build targets compile with different compilation flags than ours.
> Related:
> https://github.com/ReactiveX/IxJS/pull/167
> https://github.com/Microsoft/TypeScript/issues/20299
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