npm package: @stdlib/ndarray-base-char2dtype
Description: Return the data type string associated with a provided single letter abbreviation.
Author: The Stdlib Authors
Latest version: 0.2.3

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# char2dtype

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

> Return the [data type][@stdlib/ndarray/dtypes] string associated with a provided [single letter character abbreviation][@stdlib/ndarray/base/dtype-char].

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/ndarray-base-char2dtype
```

</section>

<section class="usage">

## Usage

```javascript
var char2dtype = require( '@stdlib/ndarray-base-char2dtype' );
```

#### char2dtype( \[ch] )

Returns the [data type][@stdlib/ndarray/dtypes] string associated with a provided [single letter character abbreviation][@stdlib/ndarray/base/dtype-char].

```javascript
var out = char2dtype( 'd' );
// returns 'float64'

out = char2dtype( 'i' );
// returns 'int32'
```

If provided an unknown or unsupported [single letter character abbreviation][@stdlib/ndarray/base/dtype-char], the function returns `null`.

```javascript
var out = char2dtype( '(' );
// returns null
```

If not provided a [data type][@stdlib/ndarray/dtypes] string, the function returns an object mapping [single letter character abbreviations][@stdlib/ndarray/base/dtype-char] to [data type][@stdlib/ndarray/dtypes] strings.

```javascript
var out = char2dtype();
// returns {...}
```

</section>

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</section>

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<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var dtypeChar = require( '@stdlib/ndarray-base-dtype-char' );
var char2dtype = require( '@stdlib/ndarray-base-char2dtype' );

var chars = [
    dtypeChar( 'float64' ),
    dtypeChar( 'float32' ),
    dtypeChar( 'int8' ),
    dtypeChar( 'uint8' ),
    dtypeChar( 'uint8c' ),
    dtypeChar( 'int16' ),
    dtypeChar( 'uint16' ),
    dtypeChar( 'int32' ),
    dtypeChar( 'uint32' ),
    dtypeChar( 'binary' ),
    dtypeChar( 'generic' ),
    '('
];

var i;
for ( i = 0; i < chars.length; i++ ) {
    console.log( '%s => %s', chars[ i ], char2dtype( chars[ i ] ) );
}
```

</section>

<!-- /.examples -->

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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

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---

## License

See [LICENSE][stdlib-license].


## Copyright

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

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[@stdlib/ndarray/dtypes]: https://www.npmjs.com/package/@stdlib/ndarray-dtypes

[@stdlib/ndarray/base/dtype-char]: https://www.npmjs.com/package/@stdlib/ndarray-base-dtype-char

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