npm package: @stdlib/array-base-fancy-slice-assign
Description: Assign element values from a broadcasted input array to corresponding elements in an output array.
Author: The Stdlib Authors
Latest version: 0.2.2

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# sliceAssign

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> Assign element values from a broadcasted input array to corresponding elements in an output array.

<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->

<section class="intro">

</section>

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<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/array-base-fancy-slice-assign
```

</section>

<section class="usage">

## Usage

```javascript
var sliceAssign = require( '@stdlib/array-base-fancy-slice-assign' );
```

#### slice( x, y, s, strict )

Assigns element values from a broadcasted input array to corresponding elements in an output array.

```javascript
var Slice = require( '@stdlib/slice-ctor' );

var x = [ 1, 2, 3, 4 ];
var y = [ 0, 0, 0, 0, 0, 0, 0, 0 ];

var s = new Slice( null, null, -2 );
// returns <Slice>

var out = sliceAssign( x, y, s, false );
// returns [ 0, 4, 0, 3, 0, 2, 0, 1 ]

var bool = ( out === y );
// returns true
```

The function supports the following parameters:

-   **x**: input array.
-   **y**: output array.
-   **s**: [slice][@stdlib/slice/ctor] object specifying the output array slice.
-   **strict**: boolean indicating whether to enforce strict bounds checking.

</section>

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<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

## Notes

-   The input array **must** be broadcast compatible with the output array slice (i.e., contain only one element or the same number of elements as in the slice).
-   The input array must have a [data type][@stdlib/array/dtypes] which can be [safely cast][@stdlib/array/safe-casts] to the output array data type. Floating-point data types (both real and complex) are allowed to downcast to a lower precision data type of the [same kind][@stdlib/array/same-kind-casts] (e.g., element values from a `'float64'` input array can be assigned to corresponding elements in a `'float32'` output array).

</section>

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<!-- Package usage examples. -->

<section class="examples">

## Examples

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

```javascript
var zeroTo = require( '@stdlib/array-zero-to' );
var zeros = require( '@stdlib/array-zeros' );
var Slice = require( '@stdlib/slice-ctor' );
var sliceAssign = require( '@stdlib/array-base-fancy-slice-assign' );

var x = zeroTo( 10, 'generic' );
// returns [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]

var y = zeros( 10, 'generic' );
// returns [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]

var s = new Slice();
var out = sliceAssign( x, y, s, false );
// returns [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 ]

x = zeroTo( 5, 'generic' );
// returns [ 0, 1, 2, 3, 4 ]

y = zeros( 10, 'generic' );
s = new Slice( null, null, -2 );
out = sliceAssign( x, y, s, false );
// returns [ 0, 4, 0, 3, 0, 2, 0, 1, 0, 0 ]

x = zeroTo( 5, 'generic' );
// returns [ 0, 1, 2, 3, 4 ]

y = zeros( 10, 'generic' );
s = new Slice( -2, null, -2 );
out = sliceAssign( x, y, s, false );
// returns [ 4, 0, 3, 0, 2, 0, 1, 0, 0, 0 ]

x = zeroTo( 6, 'generic' );
// returns [ 0, 1, 2, 3, 4, 5 ]

y = zeros( 10, 'generic' );
s = new Slice( 2, -2 );
out = sliceAssign( x, y, s, false );
// returns [ 0, 0, 0, 1, 2, 3, 4, 5, 0, 0 ]

x = zeroTo( 3, 'generic' );
// returns [ 0, 1, 2 ]

y = zeros( 10, 'generic' );
s = new Slice( 2, 5 );
out = sliceAssign( x, y, s, false );
// returns [ 0, 0, 0, 1, 2, 0, 0, 0, 0, 0 ]

x = zeroTo( 3, 'generic' );
// returns [ 0, 1, 2 ]

y = zeros( 10, 'generic' );
s = new Slice( 4, 1, -1 );
out = sliceAssign( x, y, s, false );
// returns [ 0, 0, 2, 1, 0, 0, 0, 0, 0, 0 ]

x = zeroTo( 5, 'generic' );
// returns [ 0, 1, 2, 3, 4 ]

y = zeros( 10, 'generic' );
s = new Slice( 5 );
out = sliceAssign( x, y, s, false );
// returns [ 0, 1, 2, 3, 4, 0, 0, 0, 0, 0 ]

x = zeroTo( 5, 'generic' );
// returns [ 0, 1, 2, 3, 4 ]

y = zeros( 10, 'generic' );
s = new Slice( 5, null );
out = sliceAssign( x, y, s, false );
// returns [ 0, 0, 0, 0, 0, 0, 1, 2, 3, 4 ]
```

</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

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---

## License

See [LICENSE][stdlib-license].


## Copyright

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

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