# Strided Array Native Add-ons > C APIs for creating Node-API strided array native add-ons.
This package exposes an absolute file path for the directory containing header files for various C APIs. The various C APIs facilitate the creation of Node-API strided array native add-ons.
## Usage ```javascript var headerDir = require( '@stdlib/strided/napi' ); ``` #### headerDir Absolute file path for the directory containing header files for C APIs. ```javascript var dir = headerDir; // returns ```
## Examples ```javascript var headerDir = require( '@stdlib/strided/napi' ); console.log( headerDir ); // => ```
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## C APIs
This package exposes various C APIs to facilitate the creation of Node-API strided array native add-ons. The included C APIs are the APIs implemented in the following packages: - [`@stdlib/strided/base/binary`][@stdlib/strided/base/binary]: https://www.npmjs.com/package/@stdlib/strided/tree/main/base/binary`][@stdlib/strided/base/binary - [`@stdlib/strided/base/dmap`][@stdlib/strided/base/dmap]: https://www.npmjs.com/package/@stdlib/strided/tree/main/base/dmap`][@stdlib/strided/base/dmap - [`@stdlib/strided/base/dmskmap`][@stdlib/strided/base/dmskmap]: https://www.npmjs.com/package/@stdlib/strided/tree/main/base/dmskmap`][@stdlib/strided/base/dmskmap - [`@stdlib/strided/base/function-object`][@stdlib/strided/base/function-object]: https://www.npmjs.com/package/@stdlib/strided/tree/main/base/function-object`][@stdlib/strided/base/function-object - [`@stdlib/strided/base/mskunary`][@stdlib/strided/base/mskunary]: https://www.npmjs.com/package/@stdlib/strided/tree/main/base/mskunary`][@stdlib/strided/base/mskunary - [`@stdlib/strided/base/smap`][@stdlib/strided/base/smap]: https://www.npmjs.com/package/@stdlib/strided/tree/main/base/smap`][@stdlib/strided/base/smap - [`@stdlib/strided/base/smskmap`][@stdlib/strided/base/smskmap]: https://www.npmjs.com/package/@stdlib/strided/tree/main/base/smskmap`][@stdlib/strided/base/smskmap - [`@stdlib/strided/base/unary`][@stdlib/strided/base/unary]: https://www.npmjs.com/package/@stdlib/strided/tree/main/base/unary`][@stdlib/strided/base/unary - [`@stdlib/strided/dtypes`][@stdlib/strided/dtypes]: https://www.npmjs.com/package/@stdlib/strided/tree/main/dtypes`][@stdlib/strided/dtypes - [`@stdlib/strided/napi/dmap`][@stdlib/strided/napi/dmap]: https://www.npmjs.com/package/@stdlib/strided/tree/main/napi/dmap`][@stdlib/strided/napi/dmap - [`@stdlib/strided/napi/dmskmap`][@stdlib/strided/napi/dmskmap]: https://www.npmjs.com/package/@stdlib/strided/tree/main/napi/dmskmap`][@stdlib/strided/napi/dmskmap - [`@stdlib/strided/napi/mskunary`][@stdlib/strided/napi/mskunary]: https://www.npmjs.com/package/@stdlib/strided/tree/main/napi/mskunary`][@stdlib/strided/napi/mskunary - [`@stdlib/strided/napi/smap`][@stdlib/strided/napi/smap]: https://www.npmjs.com/package/@stdlib/strided/tree/main/napi/smap`][@stdlib/strided/napi/smap - [`@stdlib/strided/napi/smskmap`][@stdlib/strided/napi/smskmap]: https://www.npmjs.com/package/@stdlib/strided/tree/main/napi/smskmap`][@stdlib/strided/napi/smskmap - [`@stdlib/strided/napi/unary`][@stdlib/strided/napi/unary]: https://www.npmjs.com/package/@stdlib/strided/tree/main/napi/unary`][@stdlib/strided/napi/unary For API documentation, consult the individual packages.
### Usage ```c #include "stdlib/strided/napi.h" ```
### Examples ```c #include "stdlib/strided/napi.h" static double identity( const double x ) { return x; } STDLIB_STRIDED_NAPI_MODULE_DMAP( identity ) ```