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‎CHANGELOG.md‎

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### Features
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- [`475f496`](https://github.com/stdlib-js/stdlib/commit/475f4962d86ed3c562800dce759c958a52e6a15e) - add `ones` to namespace
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- [`ded14cf`](https://github.com/stdlib-js/stdlib/commit/ded14cff1642c79ac122cc05b65e911cc24ec2ac) - add `ndarray/ones`
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- [`e00d73a`](https://github.com/stdlib-js/stdlib/commit/e00d73a3cb8c5355a46771ed5630d178e25ec0f4) - add `onesLike` to namespace
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- [`d200536`](https://github.com/stdlib-js/stdlib/commit/d200536a79672d3a31022f894a63acdf08b79159) - add `ndarray/base/ones-like`
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- [`baef022`](https://github.com/stdlib-js/stdlib/commit/baef0223f86db141fa6a1dabc15ec6c5fa2f0f59) - update `ndarray/base` TypeScript declarations [(#11131)](https://github.com/stdlib-js/stdlib/pull/11131)
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<details>
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- [`475f496`](https://github.com/stdlib-js/stdlib/commit/475f4962d86ed3c562800dce759c958a52e6a15e) - **feat:** add `ones` to namespace _(by Athan Reines)_
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- [`ded14cf`](https://github.com/stdlib-js/stdlib/commit/ded14cff1642c79ac122cc05b65e911cc24ec2ac) - **feat:** add `ndarray/ones` _(by Athan Reines)_
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- [`bbd8f0e`](https://github.com/stdlib-js/stdlib/commit/bbd8f0eec8d6d52201d7706a349fdb9cac737d9c) - **refactor:** avoid unnecessary offset calculation _(by Athan Reines)_
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- [`8d3124d`](https://github.com/stdlib-js/stdlib/commit/8d3124d525abb511f0257649bfc4e0bf6c0ce87b) - **docs:** add comment _(by Athan Reines)_
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- [`372443f`](https://github.com/stdlib-js/stdlib/commit/372443fe38ff5fac2c1a5214593e4aecbf7e3096) - **refactor:** more strictly enforce dtype and shape constraints and handle dtype instances _(by Athan Reines)_

‎lib/index.js‎

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*/
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setReadOnly( ns, 'offset', require( './../offset' ) );
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/**
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* @name ones
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* @memberof ns
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* @readonly
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* @type {Function}
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* @see {@link module:@stdlib/ndarray/ones}
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*/
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setReadOnly( ns, 'ones', require( './../ones' ) );
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/**
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* @name order
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* @memberof ns

‎ones/README.md‎

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<!--
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@license Apache-2.0
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Copyright (c) 2026 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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# ones
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> Create a ones-filled [ndarray][@stdlib/ndarray/ctor] having a specified shape and [data type][@stdlib/ndarray/dtypes].
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<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->
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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 ones = require( '@stdlib/ndarray/ones' );
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```
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#### ones( shape\[, options] )
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Creates a ones-filled [ndarray][@stdlib/ndarray/ctor] having a specified shape and [data type][@stdlib/ndarray/dtypes].
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```javascript
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var getShape = require( '@stdlib/ndarray/shape' );
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var getDType = require( '@stdlib/ndarray/dtype' );
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var arr = ones( [ 2, 2 ] );
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// returns <ndarray>[ [ 1.0, 1.0 ], [ 1.0, 1.0 ] ]
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var sh = getShape( arr );
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// returns [ 2, 2 ]
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var dt = String( getDType( arr ) );
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// returns 'float64'
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```
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The specified output [ndarray][@stdlib/ndarray/ctor] shape may be either an array-like object or an integer value.
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```javascript
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var getShape = require( '@stdlib/ndarray/shape' );
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var getDType = require( '@stdlib/ndarray/dtype' );
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var arr = ones( 2 );
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// returns <ndarray>[ 1.0, 1.0 ]
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var sh = getShape( arr );
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// returns [ 2 ]
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var dt = String( getDType( arr ) );
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// returns 'float64'
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```
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The function accepts the following options:
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- **dtype**: underlying [data type][@stdlib/ndarray/dtypes]. Must be a numeric or "generic" [data type][@stdlib/ndarray/dtypes]. Default: `'float64'`.
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- **order**: specifies whether an [ndarray][@stdlib/ndarray/ctor] is `'row-major'` (C-style) or `'column-major'` (Fortran-style). Default: `'row-major'`.
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- **mode**: specifies how to handle indices which exceed array dimensions (see [ndarray][@stdlib/ndarray/ctor]). Default: `'throw'`.
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- **submode**: a mode array which specifies for each dimension how to handle subscripts which exceed array dimensions (see [ndarray][@stdlib/ndarray/ctor]). If provided fewer modes than dimensions, the constructor recycles modes using modulo arithmetic. Default: `[ options.mode ]`.
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- **readonly**: boolean indicating whether an array should be **read-only**. Default: `false`.
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By default, the function returns an [ndarray][@stdlib/ndarray/ctor] having a [`float64`][@stdlib/ndarray/dtypes] data type. To specify an alternative [data type][@stdlib/ndarray/dtypes], provide a `dtype` option.
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```javascript
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var getShape = require( '@stdlib/ndarray/shape' );
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var getDType = require( '@stdlib/ndarray/dtype' );
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var arr = ones( [ 2, 2 ], {
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'dtype': 'float32'
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});
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// returns <ndarray>[ [ 1.0, 1.0 ], [ 1.0, 1.0 ] ]
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var sh = getShape( arr );
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// returns [ 2, 2 ]
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var dt = String( getDType( arr ) );
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// returns 'float32'
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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 dtypes = require( '@stdlib/ndarray/dtypes' );
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var ndarray2array = require( '@stdlib/ndarray/to-array' );
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var ones = require( '@stdlib/ndarray/ones' );
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// Get a list of data types:
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var dt = dtypes( 'integer_and_generic' );
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// Generate ones-filled arrays...
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var arr;
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var i;
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for ( i = 0; i < dt.length; i++ ) {
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arr = ones( [ 2, 2 ], {
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'dtype': dt[ i ]
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});
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console.log( ndarray2array( arr ) );
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}
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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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[@stdlib/ndarray/dtypes]: https://github.com/stdlib-js/ndarray/tree/main/dtypes
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</section>
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<!-- /.links -->

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