npm package: @stdlib/slice-base-normalize-multi-slice
Description: Normalize a MultiSlice object.
Author: The Stdlib Authors
Latest version: 0.2.4

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# normalizeMultiSlice

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> Normalize a [`MultiSlice`][@stdlib/slice/multi] object.

<!-- 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/slice-base-normalize-multi-slice
```

</section>

<section class="usage">

## Usage

```javascript
var normalizeMultiSlice = require( '@stdlib/slice-base-normalize-multi-slice' );
```

<a name="main"></a>

#### normalizeMultiSlice( slice, shape, strict )

Normalizes a [`MultiSlice`][@stdlib/slice/multi] object, where `shape` specifies the maximum allowed slice shape.

<!-- eslint-disable stdlib/no-redeclare, no-global-assign -->

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

var shape = [ 10, 10, 10 ];

var s1 = new MultiSlice( new Slice( 2, null, 2 ), null, -4 );
var s2 = normalizeMultiSlice( s1, shape, false );
// returns <MultiSlice>

var d = s2.data;
// returns [ <Slice>, <Slice>, <Slice> ]

var v = d[ 0 ];
// returns <Slice>

var start = v.start;
// returns 2

var stop = v.stop;
// returns 10

var step = v.step;
// returns 2

v = d[ 1 ];
// returns <Slice>

start = v.start;
// returns 0

stop = v.stop;
// returns 10

step = v.step;
// returns 1

v = d[ 2 ];
// returns <Slice>

start = v.start;
// returns 6

stop = v.stop;
// returns 7

step = v.step;
// returns 1
```

When `strict` is `true`, the function returns an error object if an input slice exceeds index bounds.

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

var s1 = new MultiSlice( new Slice( -20, 20, 1 ) );
var s2 = normalizeMultiSlice( s1, [ 10 ], true );
// returns { 'code': 'ERR_SLICE_OUT_OF_BOUNDS' }
```

A returned error object may have one of the following error codes:

-   **ERR_SLICE_OUT_OF_BOUNDS**: a slice exceeds index bounds.

</section>

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<section class="notes">

</section>

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<!-- Package usage examples. -->

<section class="examples">

## Examples

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

<!-- eslint-disable new-cap -->

```javascript
var S = require( '@stdlib/slice-ctor' );
var MultiSlice = require( '@stdlib/slice-multi' );
var normalizeMultiSlice = require( '@stdlib/slice-base-normalize-multi-slice' );

var s1 = new MultiSlice( null, S(), -1 );
var s2 = normalizeMultiSlice( s1, [ 5, 10, 7 ], false );
console.log( '%s => %s', s1.toString(), s2.toString() );

s1 = new MultiSlice( null );
s2 = normalizeMultiSlice( s1, [ 5 ], false );
console.log( '%s => %s', s1.toString(), s2.toString() );

s1 = new MultiSlice( S( -1, null, -1 ), 3 );
s2 = normalizeMultiSlice( s1, [ 5, 5 ], false );
console.log( '%s => %s', s1.toString(), s2.toString() );

s1 = new MultiSlice( 2, S( -10, -2, 2 ), 3, null );
s2 = normalizeMultiSlice( s1, [ 10, 10, 10, 10 ], false );
console.log( '%s => %s', s1.toString(), s2.toString() );

s1 = new MultiSlice( S( 1, 20, 2 ), S( null, null, -1 ) );
s2 = normalizeMultiSlice( s1, [ 10, 10 ], false );
console.log( '%s => %s', s1.toString(), s2.toString() );
```

</section>

<!-- /.examples -->

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</section>

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<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/slice-base/normalize-slice`][@stdlib/slice/base/normalize-slice]</span><span class="delimiter">: </span><span class="description">normalize a Slice object.</span>

</section>

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<section class="main-repo" >

* * *

## 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].

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---

## License

See [LICENSE][stdlib-license].


## Copyright

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

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[@stdlib/slice/multi]: https://www.npmjs.com/package/@stdlib/slice-multi

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[@stdlib/slice/base/normalize-slice]: https://www.npmjs.com/package/@stdlib/slice-base-normalize-slice

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