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https://github.com/stdlib-js/array-base-min-signed-integer-dtype

Determine the minimum array data type for storing a provided signed integer value.
https://github.com/stdlib-js/array-base-min-signed-integer-dtype

array base dtype int integer javascript memory minimum node node-js nodejs scalar signed stdlib type types util utilities utility utils

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Determine the minimum array data type for storing a provided signed integer value.

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README 

        



  

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# Minimum Data Type



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



> Determine the minimum array [data type][@stdlib/array/dtypes] for storing a provided signed integer value.



## Installation



```bash

npm install @stdlib/array-base-min-signed-integer-dtype

```



Alternatively,



-   To load the package in a website via a `script` tag without installation and bundlers, use the [ES Module][es-module] available on the [`esm`][esm-url] branch (see [README][esm-readme]).

-   If you are using Deno, visit the [`deno`][deno-url] branch (see [README][deno-readme] for usage intructions).

-   For use in Observable, or in browser/node environments, use the [Universal Module Definition (UMD)][umd] build available on the [`umd`][umd-url] branch (see [README][umd-readme]).



The [branches.md][branches-url] file summarizes the available branches and displays a diagram illustrating their relationships.



To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.



## Usage



```javascript

var minSignedIntegerDataType = require( '@stdlib/array-base-min-signed-integer-dtype' );

```



#### minSignedIntegerDataType( value )



Returns the minimum array [data type][@stdlib/array/dtypes] for storing a provided signed integer value.



```javascript

var dt = minSignedIntegerDataType( 9999 );

// returns 'int16'



dt = minSignedIntegerDataType( -3 );

// returns 'int8'



dt = minSignedIntegerDataType( 3 );

// returns 'int8'



dt = minSignedIntegerDataType( 1e100 );

// returns 'float64'

```



## Notes



-   Once a provided integer value exceeds the maximum values of all supported signed integer [data types][@stdlib/array/dtypes], the function defaults to returning `'float64'`.



## Examples



```javascript

var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );

var exp2 = require( '@stdlib/math-base-special-exp2' );

var minSignedIntegerDataType = require( '@stdlib/array-base-min-signed-integer-dtype' );



// Generate random powers:

var exp = discreteUniform( 100, 0, 40, {

    'dtype': 'generic'

});



// Determine the minimum data type for each generated value...

var v;

var i;

for ( i = 0; i < exp.length; i++ ) {

    v = exp2( exp[ i ] );

    console.log( 'min(%d) => %s', v, minSignedIntegerDataType( v ) );

}

```



* * *



## 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 © 2016-2024. The Stdlib [Authors][stdlib-authors].



[npm-image]: http://img.shields.io/npm/v/@stdlib/array-base-min-signed-integer-dtype.svg

[npm-url]: https://npmjs.org/package/@stdlib/array-base-min-signed-integer-dtype



[test-image]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/actions/workflows/test.yml/badge.svg?branch=main

[test-url]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/actions/workflows/test.yml?query=branch:main



[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/array-base-min-signed-integer-dtype/main.svg

[coverage-url]: https://codecov.io/github/stdlib-js/array-base-min-signed-integer-dtype?branch=main



[chat-image]: https://img.shields.io/gitter/room/stdlib-js/stdlib.svg

[chat-url]: https://app.gitter.im/#/room/#stdlib-js_stdlib:gitter.im



[stdlib]: https://github.com/stdlib-js/stdlib



[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors



[umd]: https://github.com/umdjs/umd

[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules



[deno-url]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/tree/deno

[deno-readme]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/blob/deno/README.md

[umd-url]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/tree/umd

[umd-readme]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/blob/umd/README.md

[esm-url]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/tree/esm

[esm-readme]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/blob/esm/README.md

[branches-url]: https://github.com/stdlib-js/array-base-min-signed-integer-dtype/blob/main/branches.md



[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/array-base-min-signed-integer-dtype/main/LICENSE



[@stdlib/array/dtypes]: https://github.com/stdlib-js/array-dtypes