Return the strides of a provided ndarray.
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> Return the strides of a provided [ndarray][@stdlib/ndarray/ctor].
``bash`
npm install @stdlib/ndarray-strides
`javascript`
var strides = require( '@stdlib/ndarray-strides' );
#### strides( x )
Returns the strides of a provided [ndarray][@stdlib/ndarray/ctor].
`javascript
var zeros = require( '@stdlib/ndarray-zeros' );
var x = zeros( [ 3, 2, 3 ] );
// returns
var st = strides( x );
// returns [ 6, 3, 1 ]
`
`javascript
var zeros = require( '@stdlib/ndarray-zeros' );
var slice = require( '@stdlib/ndarray-slice' );
var E = require( '@stdlib/slice-multi' );
var S = require( '@stdlib/slice-ctor' );
var strides = require( '@stdlib/ndarray-strides' );
// Create an array:
var x = zeros( [ 10, 10, 10, 10 ] );
// returns
// Define some slices:
var slices = [
// :,:,:,:
E( null, null, null, null ),
// 5:10,4,2:4,::-1
E( S( 5, 10 ), 4, S( 2, 4 ), S( null, null, -1 ) ),
// :,:,2,:
E( null, null, 2, null ),
// 1,2,3,:
E( 1, 2, 3, null ),
// 1,3,::2,4::2
E( 1, 3, S( null, null, 2 ), S( 4, null, 2 ) )
];
// Determine the strides of each slice...
var s;
var i;
for ( i = 0; i < slices.length; i++ ) {
s = slice( x, slices[ i ] );
console.log( '(%s) => (%s)', x.strides.join( ',' ), strides( s ).join( ',' ) );
}
`
*
- [@stdlib/ndarray-array][@stdlib/ndarray/array]: multidimensional arrays.
- [@stdlib/ndarray-ctor][@stdlib/ndarray/ctor]: multidimensional array constructor.
- [@stdlib/ndarray-offset][@stdlib/ndarray/offset]: return the index offset specifying the underlying buffer index of the first iterated ndarray element.
- [@stdlib/ndarray-order][@stdlib/ndarray/order]: return the layout order of a provided ndarray.
- [@stdlib/ndarray-shape][@stdlib/ndarray/shape]: return the shape of a provided ndarray.
*
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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---
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Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[deno-url]: https://github.com/stdlib-js/ndarray-strides/tree/deno
[deno-readme]: https://github.com/stdlib-js/ndarray-strides/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/ndarray-strides/tree/umd
[umd-readme]: https://github.com/stdlib-js/ndarray-strides/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/ndarray-strides/tree/esm
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[@stdlib/ndarray/ctor]: https://www.npmjs.com/package/@stdlib/ndarray-ctor
[@stdlib/ndarray/array]: https://www.npmjs.com/package/@stdlib/ndarray-array
[@stdlib/ndarray/offset]: https://www.npmjs.com/package/@stdlib/ndarray-offset
[@stdlib/ndarray/order]: https://www.npmjs.com/package/@stdlib/ndarray-order
[@stdlib/ndarray/shape]: https://www.npmjs.com/package/@stdlib/ndarray-shape