isNegativeNumberArray

Test if a value is an array-like object containing only negative numbers.

Installation

npm install @stdlib/assert-is-negative-number-array

Usage

var isNegativeNumberArray = require( '@stdlib/assert-is-negative-number-array' );

isNegativeNumberArray( value )

Tests if a value is an array-like object containing only negative numbers.

var Number = require( '@stdlib/number-ctor' );

var bool = isNegativeNumberArray( [ -3.0, new Number(-3.0) ] );
// returns true

bool = isNegativeNumberArray( [ -3.0, '-3.0' ] );
// returns false

isNegativeNumberArray.primitives( value )

Tests if a value is an array-like object array containing only primitive negative numbers.

var Number = require( '@stdlib/number-ctor' );

var bool = isNegativeNumberArray.primitives( [ -1.0, -5.0, -10.0 ] );
// returns true

bool = isNegativeNumberArray.primitives( [ -3.0, new Number(-1.0) ] );
// returns false

isNegativeNumberArray.objects( value )

Tests if a value is an array-like object array containing only object negative numbers.

var Number = require( '@stdlib/number-ctor' );

var bool = isNegativeNumberArray.objects( [ new Number(-1.0), new Number(-1.0) ] );
// returns true

bool = isNegativeNumberArray.objects( [ -1.0, -5.0, -10.0 ] );
// returns false

Examples

var Number = require( '@stdlib/number-ctor' );
var isNegativeNumberArray = require( '@stdlib/assert-is-negative-number-array' );

var bool = isNegativeNumberArray( [ -5.0, -0.2, -3.9 ] );
// returns true

bool = isNegativeNumberArray( [ -1, -2, -3 ] );
// returns true

bool = isNegativeNumberArray( [ -1, new Number( -6 ), -3 ] );
// returns true

bool = isNegativeNumberArray( [ 0, -2, -4 ] );
// returns false

bool = isNegativeNumberArray( [ -1, 'abc', -3 ] );
// returns false

bool = isNegativeNumberArray( -78.0 );
// returns false

See Also

• @stdlib/assert-is-array: test if a value is an array.

Notice

This package is part of 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, see the main project repository.

Community

License

See LICENSE.

Copyright

Copyright © 2016-2024. The Stdlib Authors.