npm package: @stdlib/ndarray-defaults
Description: Default ndarray settings.
Author: The Stdlib Authors
Latest version: 0.4.1

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    About stdlib...
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# defaults

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> Default ndarray settings.

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<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/ndarray-defaults
```

</section>

<section class="usage">

## Usage

```javascript
var defaults = require( '@stdlib/ndarray-defaults' );
```

#### defaults()

Returns default ndarray settings.

```javascript
var out = defaults();
// returns {...}
```

The returned object has the following properties:

-   **dtypes**: default data types.

    -   **default**: default data type.
    -   **numeric**: default numeric data type.
    -   **real**: default real-valued data type.
    -   **floating_point**: default floating-point data type.
    -   **real_floating_point**: default real-valued floating-point data type.
    -   **complex_floating_point**: default complex-valued floating-point data type.
    -   **integer**: default integer data type.
    -   **signed_integer**: default signed integer data type.
    -   **unsigned_integer**: default unsigned integer data type.
    -   **boolean**: default boolean data type.
    -   **index**: default index data type.
    -   **integer_index**: default integer index data type.
    -   **boolean_index**: default boolean index data type.
    -   **mask_index**: default mask index data type.

-   **order**: default memory layout.

-   **casting**: default casting mode.

-   **index_mode**: default index mode.

#### defaults.get( name )

Returns the setting value for a provided setting `name`.

```javascript
var v = defaults.get( 'order' );
// returns <string>

v = defaults.get( 'dtypes.floating_point' );
// returns <string>
```

The setting `name` corresponds to a flattened object path. For example, the setting name `'dtypes.default'` maps to the nested path `o.dtypes.default` as found in the object returned by `defaults()`.

</section>

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<section class="examples">

## Examples

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

```javascript
var array = require( '@stdlib/ndarray-array' );
var defaults = require( '@stdlib/ndarray-defaults' );

var o = defaults();

var buf = [ [ 1, 2 ], [ 3, 4 ] ];
var opts = {
    'order': o.order,
    'casting': 'unsafe',
    'mode': o.index_mode
};

opts.dtype = o.dtypes.default;
var x = array( buf, opts );
console.log( x.dtype );

opts.dtype = o.dtypes.floating_point;
x = array( buf, opts );
console.log( x.dtype );

opts.dtype = o.dtypes.real_floating_point;
x = array( buf, opts );
console.log( x.dtype );

opts.dtype = o.dtypes.integer;
x = array( buf, opts );
console.log( x.dtype );

opts.dtype = o.dtypes.signed_integer;
x = array( buf, opts );
console.log( x.dtype );

opts.dtype = o.dtypes.unsigned_integer;
x = array( buf, opts );
console.log( x.dtype );

opts.dtype = o.dtypes.boolean;
x = array( buf, opts );
console.log( x.dtype );
```

</section>

<!-- /.examples -->

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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

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

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