# isNonNegativeNumber > Test if a value is a number having a nonnegative value.
## Usage ```javascript var isNonNegativeNumber = require( '@stdlib/assert/is-nonnegative-number' ); ``` #### isNonNegativeNumber( value ) Tests if a `value` is a `number` having a nonnegative value. ```javascript var Number = require( '@stdlib/number/ctor' ); var bool = isNonNegativeNumber( 5.0 ); // returns true bool = isNonNegativeNumber( new Number( 5.0 ) ); // returns true bool = isNonNegativeNumber( 3.14 ); // returns true bool = isNonNegativeNumber( -5.0 ); // returns false bool = isNonNegativeNumber( null ); // returns false ``` #### isNonNegativeNumber.isPrimitive( value ) Tests if a `value` is a primitive `number` having a nonnegative value. ```javascript var Number = require( '@stdlib/number/ctor' ); var bool = isNonNegativeNumber.isPrimitive( 3.0 ); // returns true bool = isNonNegativeNumber.isPrimitive( new Number( 3.0 ) ); // returns false ``` #### isNonNegativeNumber.isObject( value ) Tests if a `value` is a `Number` object having a nonnegative value. ```javascript var Number = require( '@stdlib/number/ctor' ); var bool = isNonNegativeNumber.isObject( 3.0 ); // returns false bool = isNonNegativeNumber.isObject( new Number( 3.0 ) ); // returns true ```
## Examples ```javascript var Number = require( '@stdlib/number/ctor' ); var isNonNegativeNumber = require( '@stdlib/assert/is-nonnegative-number' ); var bool = isNonNegativeNumber( 5.0 ); // returns true bool = isNonNegativeNumber( new Number( 5.0 ) ); // returns true bool = isNonNegativeNumber( 0.0 ); // returns true bool = isNonNegativeNumber( 3.14 ); // returns true bool = isNonNegativeNumber( -5.0 ); // returns false bool = isNonNegativeNumber( '5' ); // returns false bool = isNonNegativeNumber( null ); // returns false ```