Test if a value is an array-like object of numbers.
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> Test if a value is an array-like object of numbers.
``bash`
npm install @stdlib/assert-is-number-array
`javascript`
var isNumberArray = require( '@stdlib/assert-is-number-array' );
#### isNumberArray( value )
Tests if a value is an array-like object of numbers.
`javascript`
var bool = isNumberArray( [ 1, 2, 3, 4 ] );
// returns true
#### isNumberArray.primitives( value )
Tests if a value is an array-like object containing only number primitives.
`javascript
var Number = require( '@stdlib/number-ctor' );
var bool = isNumberArray.primitives( [ 1, 2, 3 ] );
// returns true
bool = isNumberArray.primitives( [ 1, new Number( 2 ), 3 ] );
// returns false
`
#### isNumberArray.objects( value )
Tests if a value is an array-like object containing only Number objects.
`javascript
var Number = require( '@stdlib/number-ctor' );
var bool = isNumberArray.objects( [ new Number( 1 ), new Number( 2 ) ] );
// returns true
bool = isNumberArray.objects( [ new Number( 1 ), 2 ] );
// returns false
`
`javascript
var Number = require( '@stdlib/number-ctor' );
var isNumberArray = require( '@stdlib/assert-is-number-array' );
var bool = isNumberArray( [ 3.14 ] );
// returns true
bool = isNumberArray( [ NaN ] );
// returns true
bool = isNumberArray( [ 1, 2, 3 ] );
// returns true
bool = isNumberArray( [ new Number( 3.14 ), 2, 3 ] );
// returns true
bool = isNumberArray( 3.14 );
// returns false
bool = isNumberArray( [] );
// returns false
bool = isNumberArray( [ '1', 2 ] );
// returns false
`
*
- [@stdlib/assert-is-array][@stdlib/assert/is-array]: test if a value is an array.
- [@stdlib/assert-is-number][@stdlib/assert/is-number]: test if a value is a number.
- [@stdlib/assert-is-numeric-array][@stdlib/assert/is-numeric-array]: test if a value is a numeric array.
*
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].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[deno-url]: https://github.com/stdlib-js/assert-is-number-array/tree/deno
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[umd-url]: https://github.com/stdlib-js/assert-is-number-array/tree/umd
[umd-readme]: https://github.com/stdlib-js/assert-is-number-array/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/assert-is-number-array/tree/esm
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[@stdlib/assert/is-array]: https://www.npmjs.com/package/@stdlib/assert-is-array
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