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<!-- @license Apache-2.0 Copyright (c) 2024 The Stdlib Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> # Data Types > List of array data types. <!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. --> <section class="intro"> </section> <!-- /.intro --> <!-- Package usage documentation. --> <section class="usage"> ## Usage ```javascript var dtypes = require( '@stdlib/array/dtypes' ); ``` #### dtypes( \[kind] ) Returns a list of array data types. ```javascript var out = dtypes(); // e.g., returns [ 'float32', 'float64', ... ] ``` When not provided a data type "kind", the function returns an array containing the following data types: - `float32`: single-precision floating-point numbers. - `float64`: double-precision floating-point numbers. - `complex64`: single-precision complex floating-point numbers. - `complex128`: double-precision complex floating-point numbers. - `bool`: boolean values. - `generic`: values of any type. - `int16`: signed 16-bit integers. - `int32`: signed 32-bit integers. - `int8`: signed 8-bit integers. - `uint16`: unsigned 16-bit integers. - `uint32`: unsigned 32-bit integers. - `uint8`: unsigned 8-bit integers. - `uint8c`: unsigned clamped 8-bit integers. To return the subset of data types belonging to a specified data type kind, provide a `kind` argument. ```javascript var out = dtypes( 'floating_point' ); // returns [...] ``` The function supports the following data type kinds: - `floating_point`: floating-point data types. - `real_floating_point`: real-valued floating-point data types. - `complex_floating_point`: complex-valued floating-point data types. - `boolean`: boolean data types. - `integer`: integer data types. - `signed_integer`: signed integer data types. - `unsigned_integer`: unsigned integer data types. - `real`: real-valued data types. - `numeric`: numeric data types. - `typed`: typed data types. - `all`: all data types. Additionally, the function supports extending the "kinds" listed above by appending an `_and_generic` suffix to the kind name (e.g., `real_and_generic`). ```javascript var out = dtypes( 'floating_point_and_generic' ); // returns [...] ``` </section> <!-- /.usage --> <!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> <section class="notes"> </section> <!-- /.notes --> <!-- Package usage examples. --> <section class="examples"> ## Examples <!-- eslint no-undef: "error" --> ```javascript var contains = require( '@stdlib/array/base/assert/contains' ).factory; var dtypes = require( '@stdlib/array/dtypes' ); var isdtype = contains( dtypes() ); var bool = isdtype( 'float64' ); // returns true bool = isdtype( 'int8' ); // returns true bool = isdtype( 'uint16' ); // returns true bool = isdtype( 'beep' ); // returns false ``` </section> <!-- /.examples --> <!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> <section class="references"> </section> <!-- /.references --> <!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. --> <section class="related"> * * * ## See Also - <span class="package-name">[`@stdlib/array/typed-dtypes`][@stdlib/array/typed-dtypes]</span><span class="delimiter">: </span><span class="description">list of typed array data types.</span> - <span class="package-name">[`@stdlib/ndarray/dtypes`][@stdlib/ndarray/dtypes]</span><span class="delimiter">: </span><span class="description">list of ndarray data types.</span> </section> <!-- /.related --> <!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> <section class="links"> <!-- <related-links> --> [@stdlib/array/typed-dtypes]: https://github.com/stdlib-js/array/tree/main/typed-dtypes [@stdlib/ndarray/dtypes]: https://www.npmjs.com/package/@stdlib/ndarray-dtypes <!-- </related-links> --> </section> <!-- /.links -->