npm package: @stdlib/ndarray-base-napi-typedarray-type-to-dtype
Description: C API for returning the ndarray data type corresponding to a Node-API typed array type.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
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    About stdlib...
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  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
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# Node-API ndarray dtype

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> C API for returning the ndarray [data type][@stdlib/ndarray/dtypes] corresponding to a Node-API typed array type.

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</section>

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<section class="installation">

## Installation

```bash
npm install @stdlib/ndarray-base-napi-typedarray-type-to-dtype
```

</section>

<section class="usage">

## Usage

```c
#include "stdlib/ndarray/base/napi/typedarray_type_to_dtype.h"
```

#### stdlib_ndarray_napi_typedarray_type_to_dtype( napi_typedarray_type vtype )

Returns the ndarray [data type][@stdlib/ndarray/dtypes] corresponding to a Node-API typed array type.

```c
#include "stdlib/ndarray/base/napi/typedarray_type_to_dtype.h"
#include "stdlib/ndarray/dtypes.h"
#include <node_api.h>
#include <assert.h>

// Add-on function export...
napi_value addon( napi_env env, napi_callback_info info ) {

    // ...

    // Get function arguments...
    size_t argc = 1;
    napi_value argv[ 1 ];
    napi_status status = napi_get_cb_info( env, info, &argc, argv, NULL, NULL );
    assert( status == napi_ok );

    // ...

    // Get a typed array argument...
    napi_typedarray_type vtype;
    size_t xlen;
    void *X;
    status = napi_get_typedarray_info( env, argv[ 0 ], &vtype, &xlen, &X, NULL, NULL );
    assert( status == napi_ok );

    // ...

    // Return the corresponding ndarray data type for the input typed array:
    enum STDLIB_NDARRAY_DTYPE dtype = stdlib_ndarray_napi_typedarray_type_to_dtype( vtype );

    // ...
}
```

</section>

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* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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