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‎CHANGELOG.md‎

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<section class="release" id="unreleased">
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## Unreleased (2025-09-30)
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## Unreleased (2025-10-02)
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<section class="features">
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### Features
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- [`92b9d26`](https://github.com/stdlib-js/stdlib/commit/92b9d26a38360ed2b4b7a8f1fe21b31efc9192c8) - add `ndarray/to-reversed` [(#8149)](https://github.com/stdlib-js/stdlib/pull/8149)
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- [`53374b7`](https://github.com/stdlib-js/stdlib/commit/53374b70682123e2b0dab22b6f642a544bf31513) - add `ndarray/reverse` [(#8148)](https://github.com/stdlib-js/stdlib/pull/8148)
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- [`29cde0f`](https://github.com/stdlib-js/stdlib/commit/29cde0f6f44f4a6a4a70ff59b4ca2d2aab0ab4aa) - add `ndarray/shift` [(#8147)](https://github.com/stdlib-js/stdlib/pull/8147)
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- [`6760298`](https://github.com/stdlib-js/stdlib/commit/6760298d2f7e38a975e2f27b24edb0d258c9c218) - add `ndarray/pop` [(#8145)](https://github.com/stdlib-js/stdlib/pull/8145)
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<details>
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- [`92b9d26`](https://github.com/stdlib-js/stdlib/commit/92b9d26a38360ed2b4b7a8f1fe21b31efc9192c8) - **feat:** add `ndarray/to-reversed` [(#8149)](https://github.com/stdlib-js/stdlib/pull/8149) _(by Muhammad Haris, Athan Reines)_
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- [`53374b7`](https://github.com/stdlib-js/stdlib/commit/53374b70682123e2b0dab22b6f642a544bf31513) - **feat:** add `ndarray/reverse` [(#8148)](https://github.com/stdlib-js/stdlib/pull/8148) _(by Muhammad Haris, Athan Reines)_
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- [`5d2dca1`](https://github.com/stdlib-js/stdlib/commit/5d2dca1fb86de3ac7e2b15c56ff948a9969d5abb) - **chore:** minor clean-up _(by Philipp Burckhardt)_
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- [`29cde0f`](https://github.com/stdlib-js/stdlib/commit/29cde0f6f44f4a6a4a70ff59b4ca2d2aab0ab4aa) - **feat:** add `ndarray/shift` [(#8147)](https://github.com/stdlib-js/stdlib/pull/8147) _(by Muhammad Haris, Athan Reines)_

‎CONTRIBUTORS‎

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@@ -232,6 +232,7 @@ fadiothman22 <48636283+fadiothman22@users.noreply.github.com>
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iraandrushko <71790513+iraandrushko@users.noreply.github.com>
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jsai28 <54253219+jsai28@users.noreply.github.com>
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lohithganni <116790357+lohithganni@users.noreply.github.com>
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navyansh007 <91735202+navyansh007@users.noreply.github.com>
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olenkabilonizhka <62379231+olenkabilonizhka@users.noreply.github.com>
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pranav-1720 <123018993+pranav-1720@users.noreply.github.com>
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rahulrangers <127782777+rahulrangers@users.noreply.github.com>

‎to-reversed/README.md‎

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<!--
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@license Apache-2.0
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Copyright (c) 2025 The Stdlib Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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# toReversed
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> Return a new [`ndarray`][@stdlib/ndarray/ctor] where the order of elements of an input [`ndarray`][@stdlib/ndarray/ctor] is reversed along each dimension.
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<!-- Section to include introductory text. Make sure to keep an empty line after the intro section element. -->
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<section class="intro">
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</section>
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<!-- /.intro -->
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<!-- Package usage documentation. -->
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<section class="usage">
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## Usage
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```javascript
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var toReversed = require( '@stdlib/ndarray/to-reversed' );
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```
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#### toReversed( x )
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Returns a new [`ndarray`][@stdlib/ndarray/ctor] where the order of elements of an input [`ndarray`][@stdlib/ndarray/ctor] is reversed along each dimension.
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```javascript
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var array = require( '@stdlib/ndarray/array' );
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var ndarray2array = require( '@stdlib/ndarray/to-array' );
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var x = array( [ 1.0, 2.0, 3.0, 4.0, 5.0, 6.0 ], {
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'shape': [ 3, 2 ]
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});
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// returns <ndarray>
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var arr = ndarray2array( x );
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// returns [ [ 1.0, 2.0 ], [ 3.0, 4.0 ], [ 5.0, 6.0 ] ]
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var y = toReversed( x );
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// returns <ndarray>
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arr = ndarray2array( y );
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// returns [ [ 6.0, 5.0 ], [ 4.0, 3.0 ], [ 2.0, 1.0 ] ]
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```
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</section>
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<!-- /.usage -->
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<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="notes">
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</section>
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<!-- /.notes -->
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<!-- Package usage examples. -->
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<section class="examples">
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## Examples
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<!-- eslint no-undef: "error" -->
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```javascript
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var uniform = require( '@stdlib/random/uniform' );
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var ndarray2array = require( '@stdlib/ndarray/to-array' );
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var toReversed = require( '@stdlib/ndarray/to-reversed' );
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var x = uniform( [ 3, 3, 3 ], -10.0, 10.0 );
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console.log( ndarray2array( x ) );
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var y = toReversed( x );
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console.log( ndarray2array( y ) );
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```
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</section>
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<!-- /.examples -->
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<!-- Section to include cited references. If references are included, add a horizontal rule *before* the section. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="references">
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</section>
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<!-- /.references -->
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<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
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<section class="related">
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</section>
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<!-- /.related -->
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<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->
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<section class="links">
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[@stdlib/ndarray/ctor]: https://github.com/stdlib-js/ndarray/tree/main/ctor
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<!-- <related-links> -->
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<!-- </related-links> -->
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</section>
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<!-- /.links -->

‎to-reversed/benchmark/benchmark.js‎

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/**
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* @license Apache-2.0
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*
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* Copyright (c) 2025 The Stdlib Authors.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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// MODULES //
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var bench = require( '@stdlib/bench' );
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var isndarrayLike = require( '@stdlib/assert/is-ndarray-like' );
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var empty = require( './../../empty' );
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var pkg = require( './../package.json' ).name;
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var toReversed = require( './../lib' );
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// MAIN //
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bench( pkg+'::0d', function benchmark( b ) {
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var values;
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var v;
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var i;
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/* eslint-disable object-curly-newline, stdlib/line-closing-bracket-spacing */
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values = [
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empty( [], { 'dtype': 'float64' } ),
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empty( [], { 'dtype': 'float32' } ),
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empty( [], { 'dtype': 'int32' } ),
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empty( [], { 'dtype': 'complex128' } ),
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empty( [], { 'dtype': 'generic' } )
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];
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/* eslint-enable object-curly-newline, stdlib/line-closing-bracket-spacing */
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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v = toReversed( values[ i%values.length ] );
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if ( typeof v !== 'object' ) {
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b.fail( 'should return an ndarray' );
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}
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}
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b.toc();
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if ( !isndarrayLike( v ) ) {
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b.fail( 'should return an ndarray' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::1d', function benchmark( b ) {
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var values;
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var v;
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var i;
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/* eslint-disable object-curly-newline, stdlib/line-closing-bracket-spacing */
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values = [
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empty( [ 2 ], { 'dtype': 'float64' } ),
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empty( [ 2 ], { 'dtype': 'float32' } ),
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empty( [ 2 ], { 'dtype': 'int32' } ),
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empty( [ 2 ], { 'dtype': 'complex128' } ),
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empty( [ 2 ], { 'dtype': 'generic' } )
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];
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/* eslint-enable object-curly-newline, stdlib/line-closing-bracket-spacing */
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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v = toReversed( values[ i%values.length ] );
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if ( typeof v !== 'object' ) {
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b.fail( 'should return an ndarray' );
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}
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}
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b.toc();
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if ( !isndarrayLike( v ) ) {
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b.fail( 'should return an ndarray' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::2d', function benchmark( b ) {
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var values;
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var v;
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var i;
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/* eslint-disable object-curly-newline, stdlib/line-closing-bracket-spacing */
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values = [
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empty( [ 2, 2 ], { 'dtype': 'float64' } ),
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empty( [ 2, 2 ], { 'dtype': 'float32' } ),
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empty( [ 2, 2 ], { 'dtype': 'int32' } ),
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empty( [ 2, 2 ], { 'dtype': 'complex128' } ),
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empty( [ 2, 2 ], { 'dtype': 'generic' } )
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];
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/* eslint-enable object-curly-newline, stdlib/line-closing-bracket-spacing */
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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v = toReversed( values[ i%values.length ] );
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if ( typeof v !== 'object' ) {
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b.fail( 'should return an ndarray' );
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}
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}
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b.toc();
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if ( !isndarrayLike( v ) ) {
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b.fail( 'should return an ndarray' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::3d', function benchmark( b ) {
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var values;
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var v;
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var i;
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/* eslint-disable object-curly-newline, stdlib/line-closing-bracket-spacing */
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values = [
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empty( [ 2, 2, 2 ], { 'dtype': 'float64' } ),
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empty( [ 2, 2, 2 ], { 'dtype': 'float32' } ),
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empty( [ 2, 2, 2 ], { 'dtype': 'int32' } ),
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empty( [ 2, 2, 2 ], { 'dtype': 'complex128' } ),
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empty( [ 2, 2, 2 ], { 'dtype': 'generic' } )
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];
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/* eslint-enable object-curly-newline, stdlib/line-closing-bracket-spacing */
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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v = toReversed( values[ i%values.length ] );
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if ( typeof v !== 'object' ) {
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b.fail( 'should return an ndarray' );
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}
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}
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b.toc();
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if ( !isndarrayLike( v ) ) {
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b.fail( 'should return an ndarray' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::4d', function benchmark( b ) {
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var values;
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var v;
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var i;
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/* eslint-disable object-curly-newline, stdlib/line-closing-bracket-spacing */
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values = [
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empty( [ 2, 2, 2, 2 ], { 'dtype': 'float64' } ),
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empty( [ 2, 2, 2, 2 ], { 'dtype': 'float32' } ),
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empty( [ 2, 2, 2, 2 ], { 'dtype': 'int32' } ),
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empty( [ 2, 2, 2, 2 ], { 'dtype': 'complex128' } ),
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empty( [ 2, 2, 2, 2 ], { 'dtype': 'generic' } )
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];
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/* eslint-enable object-curly-newline, stdlib/line-closing-bracket-spacing */
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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v = toReversed( values[ i%values.length ] );
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if ( typeof v !== 'object' ) {
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b.fail( 'should return an ndarray' );
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}
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}
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b.toc();
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if ( !isndarrayLike( v ) ) {
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b.fail( 'should return an ndarray' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});
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bench( pkg+'::5d', function benchmark( b ) {
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var values;
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var v;
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var i;
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/* eslint-disable object-curly-newline, stdlib/line-closing-bracket-spacing */
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values = [
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empty( [ 2, 2, 2, 2, 2 ], { 'dtype': 'float64' } ),
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empty( [ 2, 2, 2, 2, 2 ], { 'dtype': 'float32' } ),
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empty( [ 2, 2, 2, 2, 2 ], { 'dtype': 'int32' } ),
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empty( [ 2, 2, 2, 2, 2 ], { 'dtype': 'complex128' } ),
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empty( [ 2, 2, 2, 2, 2 ], { 'dtype': 'generic' } )
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];
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/* eslint-enable object-curly-newline, stdlib/line-closing-bracket-spacing */
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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v = toReversed( values[ i%values.length ] );
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if ( typeof v !== 'object' ) {
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b.fail( 'should return an ndarray' );
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}
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}
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b.toc();
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if ( !isndarrayLike( v ) ) {
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b.fail( 'should return an ndarray' );
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}
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b.pass( 'benchmark finished' );
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b.end();
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});

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