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https://issues.apache.org/jira/browse/ARROW-8394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17185329#comment-17185329
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Tim Conkling commented on ARROW-8394:
-------------------------------------
Chiming in with an annoying +1 vote for this issue - is it being investigated?
I'm using Apache Arrow to ship dataframes from Python to a browser app, and
would _love_ to be able to use TypeScript, but I'm unable to get the project to
compile.
Incidentally, I also tried downgrading my project's TypeScript version to 3.5,
but that results in different errors:
```
node_modules/apache-arrow/ipc/reader.d.ts:238:5 - error TS2717: Subsequent
property declarations must have the same type. Property 'schema' must be of
type 'Schema<T>', but here has type 'Schema<any>'.
238 schema: Schema;
~~~~~~
node_modules/apache-arrow/ipc/reader.d.ts:191:5
191 schema: Schema<T>;
~~~~~~
'schema' was also declared here.
node_modules/apache-arrow/recordbatch.d.ts:17:18 - error TS2430: Interface
'RecordBatch<T>' incorrectly extends interface 'StructVector<T>'.
Types of property 'slice' are incompatible.
Type '(begin?: number | undefined, end?: number | undefined) =>
RecordBatch<T>' is not assignable to type '(begin?: number | undefined, end?:
number | undefined) => StructVector<T>'.
Type 'RecordBatch<T>' is not assignable to type 'StructVector<T>'.
Types of property 'clone' are incompatible.
Type '(data: Data<Struct<T>>, children?: AbstractVector<any>[] | undefined) =>
RecordBatch<T>' is not assignable to type '<R extends DataType<Type, any> =
Struct<T>>(data: Data<R>, children?: AbstractVector<R>[] | undefined) =>
VectorType<R>'.
Types of parameters 'data' and 'data' are incompatible.
Type 'Data<R>' is not assignable to type 'Data<Struct<T>>'.
Type 'R' is not assignable to type 'Struct<T>'.
Property 'dataTypes' is missing in type 'DataType<Type, any>' but required in
type 'Struct<T>'.
17 export interface RecordBatch<T extends {
~~~~~~~~~~~
node_modules/apache-arrow/type.d.ts:458:5
458 dataTypes: T;
~~~~~~~~~
'dataTypes' is declared here.
node_modules/apache-arrow/recordbatch.d.ts:24:22 - error TS2415: Class
'RecordBatch<T>' incorrectly extends base class 'StructVector<T>'.
24 export declare class RecordBatch<T extends {
~~~~~~~~~~~
Found 3 errors.
```
> [JS] Typescript compiler errors for arrow d.ts files, when using es2015-esm
> package
> -----------------------------------------------------------------------------------
>
> Key: ARROW-8394
> URL: https://issues.apache.org/jira/browse/ARROW-8394
> Project: Apache Arrow
> Issue Type: Bug
> Components: JavaScript
> Affects Versions: 0.16.0
> Reporter: Shyamal Shukla
> Priority: Blocker
>
> Attempting to use apache-arrow within a web application, but typescript
> compiler throws the following errors in some of arrow's .d.ts files
> import \{ Table } from "../node_modules/@apache-arrow/es2015-esm/Arrow";
> export class SomeClass {
> .
> .
> constructor() {
> const t = Table.from('');
> }
> *node_modules/@apache-arrow/es2015-esm/column.d.ts:14:22* - error TS2417:
> Class static side 'typeof Column' incorrectly extends base class static side
> 'typeof Chunked'. Types of property 'new' are incompatible.
> *node_modules/@apache-arrow/es2015-esm/ipc/reader.d.ts:238:5* - error TS2717:
> Subsequent property declarations must have the same type. Property 'schema'
> must be of type 'Schema', but here has type 'Schema'.
> 238 schema: Schema;
> *node_modules/@apache-arrow/es2015-esm/recordbatch.d.ts:17:18* - error
> TS2430: Interface 'RecordBatch' incorrectly extends interface 'StructVector'.
> The types of 'slice(...).clone' are incompatible between these types.
> the tsconfig.json file looks like
> {
> "compilerOptions": {
> "target":"ES6",
> "outDir": "dist",
> "baseUrl": "src/"
> },
> "exclude": ["dist"],
> "include": ["src/*.ts"]
> }
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