# isNonNegativeInteger [![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] > Test if a value is a number having a nonnegative integer value.
## Installation ```bash npm install @stdlib/assert-is-nonnegative-integer ```
## Usage ```javascript var isNonNegativeInteger = require( '@stdlib/assert-is-nonnegative-integer' ); ``` #### isNonNegativeInteger( value ) Tests if a `value` is a `number` having a nonnegative `integer` value. ```javascript var Number = require( '@stdlib/number-ctor' ); var bool = isNonNegativeInteger( 5.0 ); // returns true bool = isNonNegativeInteger( new Number( 5.0 ) ); // returns true bool = isNonNegativeInteger( -5.0 ); // returns false bool = isNonNegativeInteger( 3.14 ); // returns false bool = isNonNegativeInteger( null ); // returns false ``` #### isNonNegativeInteger.isPrimitive( value ) Tests if a `value` is a primitive `number` having a nonnegative `integer` value. ```javascript var Number = require( '@stdlib/number-ctor' ); var bool = isNonNegativeInteger.isPrimitive( 3.0 ); // returns true bool = isNonNegativeInteger.isPrimitive( new Number( 3.0 ) ); // returns false ``` #### isNonNegativeInteger.isObject( value ) Tests if a `value` is a `Number` object having a nonnegative `integer` value. ```javascript var Number = require( '@stdlib/number-ctor' ); var bool = isNonNegativeInteger.isObject( 3.0 ); // returns false bool = isNonNegativeInteger.isObject( new Number( 3.0 ) ); // returns true ```
## Examples ```javascript var Number = require( '@stdlib/number-ctor' ); var isNonNegativeInteger = require( '@stdlib/assert-is-nonnegative-integer' ); var bool = isNonNegativeInteger( 5.0 ); // returns true bool = isNonNegativeInteger( new Number( 5.0 ) ); // returns true bool = isNonNegativeInteger( 0.0 ); // returns true bool = isNonNegativeInteger( 3.14 ); // returns false bool = isNonNegativeInteger( -5.0 ); // returns false bool = isNonNegativeInteger( '5' ); // returns false bool = isNonNegativeInteger( null ); // returns false ```
* * * ## 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 © 2016-2022. The Stdlib [Authors][stdlib-authors].