npm package: @stdlib/ndarray-base-min-signed-integer-dtype
Description: Determine the minimum ndarray data type for storing a provided signed integer value.
Author: The Stdlib Authors
Latest version: 0.1.1

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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] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

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

<!-- 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>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/ndarray-base-min-signed-integer-dtype
```

</section>

<section class="usage">

## Usage

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

#### minSignedIntegerDataType( value )

Returns the minimum ndarray [data type][@stdlib/ndarray/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'
```

</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">

## Notes

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

</section>

<!-- /.notes -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

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

```javascript
var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var exp2 = require( '@stdlib/math-base-special-exp2' );
var minSignedIntegerDataType = require( '@stdlib/ndarray-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 ) );
}
```

</section>

<!-- /.examples -->

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</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

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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

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