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‎CHANGELOG.md

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### Features
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- [`8b2c875`](https://github.com/stdlib-js/stdlib/commit/8b2c875e56586bdff1698fd768cec5d568ab24a0) - add `anyHasOwnProp` to namespace
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- [`533df61`](https://github.com/stdlib-js/stdlib/commit/533df61c24c654e67a6d3dbf84b878ec0f8c9520) - add `array/base/assert/any-has-own-property`
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- [`2ab5cd8`](https://github.com/stdlib-js/stdlib/commit/2ab5cd84a76425d34ed204d222c33a000107b8d0) - add `anyHasProp` to namespace
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- [`ccd5ca6`](https://github.com/stdlib-js/stdlib/commit/ccd5ca60ccf12f9480f930547afb60da9732bf59) - add `array/base/assert/any-has-property`
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- [`5edbc25`](https://github.com/stdlib-js/stdlib/commit/5edbc2524bf509bd0bbde5c6432c77f06e55a65d) - add index data type kinds
@@ -170,6 +172,9 @@ A total of 31 issues were closed in this release:
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<details>
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- [`8b2c875`](https://github.com/stdlib-js/stdlib/commit/8b2c875e56586bdff1698fd768cec5d568ab24a0) - **feat:** add `anyHasOwnProp` to namespace _(by Athan Reines)_
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- [`533df61`](https://github.com/stdlib-js/stdlib/commit/533df61c24c654e67a6d3dbf84b878ec0f8c9520) - **feat:** add `array/base/assert/any-has-own-property` _(by Athan Reines)_
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- [`80b1cec`](https://github.com/stdlib-js/stdlib/commit/80b1cec874dbe423a50ed26c1a6c3a7f5fc05cd9) - **docs:** update examples _(by Athan Reines)_
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- [`d1a712d`](https://github.com/stdlib-js/stdlib/commit/d1a712db9218350f4e37926ac993b97573b65ba9) - **docs:** demonstrate prototype property _(by Athan Reines)_
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- [`2ab5cd8`](https://github.com/stdlib-js/stdlib/commit/2ab5cd84a76425d34ed204d222c33a000107b8d0) - **feat:** add `anyHasProp` to namespace _(by Athan Reines)_
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- [`ccd5ca6`](https://github.com/stdlib-js/stdlib/commit/ccd5ca60ccf12f9480f930547afb60da9732bf59) - **feat:** add `array/base/assert/any-has-property` _(by Athan Reines)_

‎base/assert/any-has-own-property/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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# anyHasOwnProp
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> Test whether at least one element in a provided array has a specified own property.
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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 anyHasOwnProp = require( '@stdlib/array/base/assert/any-has-own-property' );
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```
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#### anyHasOwnProp( arr, property )
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Tests whether at least one element in a provided array has a specified own property.
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```javascript
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var o1 = {
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'a': 1
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};
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var o2 = {
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'b': 2
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};
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var o3 = {
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'c': 3
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};
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var bool = anyHasOwnProp( [ o1, o2, o3 ], 'b' );
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// returns true
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bool = anyHasOwnProp( [ o1, o2, o3 ], 'd' );
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// returns false
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bool = anyHasOwnProp( [ o1, o2, o3 ], 'toString' );
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// returns false
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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 fromCodePoint = require( '@stdlib/string/from-code-point' );
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var discreteUniform = require( '@stdlib/random/base/discrete-uniform' );
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var filledBy = require( '@stdlib/array/filled-by' );
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var anyHasOwnProp = require( '@stdlib/array/base/assert/any-has-own-property' );
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function randomObject() {
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var o = {};
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o[ fromCodePoint( 97+discreteUniform( 0, 25 ) ) ] = 0;
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return o;
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}
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var arr = filledBy( 10, 'generic', randomObject );
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console.log( arr );
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var bool = anyHasOwnProp( arr, 'a' );
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console.log( 'a: %s', bool );
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bool = anyHasOwnProp( arr, 'b' );
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console.log( 'b: %s', bool );
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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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</section>
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<!-- /.links -->

‎base/assert/any-has-own-property/benchmark/benchmark.length.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 pow = require( '@stdlib/math/base/special/pow' );
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var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
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var filled = require( './../../../../filled' );
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var pkg = require( './../package.json' ).name;
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var anyHasOwnProp = require( './../lib' );
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// FUNCTIONS //
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/**
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* Creates a benchmark function.
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*
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* @private
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* @param {PositiveInteger} len - array length
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* @returns {Function} benchmark function
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*/
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function createBenchmark( len ) {
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var x = filled( {}, len, 'generic' );
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return benchmark;
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/**
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* Benchmark function.
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*
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* @private
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* @param {Benchmark} b - benchmark instance
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*/
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function benchmark( b ) {
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var out;
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var i;
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b.tic();
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for ( i = 0; i < b.iterations; i++ ) {
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out = anyHasOwnProp( x, 'foo' );
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if ( typeof out !== 'boolean' ) {
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b.fail( 'should return a boolean' );
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}
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}
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b.toc();
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if ( !isBoolean( out ) ) {
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b.fail( 'should return a boolean' );
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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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}
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// MAIN //
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/**
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* Main execution sequence.
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*
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* @private
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*/
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function main() {
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var len;
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var min;
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var max;
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var f;
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var i;
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min = 1; // 10^min
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max = 6; // 10^max
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for ( i = min; i <= max; i++ ) {
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len = pow( 10, i );
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f = createBenchmark( len );
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bench( pkg+':dtype=generic,len='+len, f );
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}
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}
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main();

‎base/assert/any-has-own-property/docs/repl.txt

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{{alias}}( arr, property )
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Tests whether at least one element in a provided indexed array has a
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specified own property.
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Parameters
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----------
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arr: Array|TypedArray|Object
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Input array.
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property: string|symbol|number
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Property.
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Returns
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-------
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bool: boolean
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Result.
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Examples
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--------
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> var o1 = { 'a': 1 };
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> var o2 = { 'b': 2 };
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> var o3 = { 'c': 3 };
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> var x = [ o1, o2, o3 ];
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> var out = {{alias}}( x, 'a' )
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true
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> out = {{alias}}( x, 'd' )
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false
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> out = {{alias}}( x, 'toString' )
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false
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See Also
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--------
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‎base/assert/any-has-own-property/docs/types/index.d.ts

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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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// TypeScript Version: 4.1
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/// <reference types="@stdlib/types"/>
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import { Collection, AccessorArrayLike } from '@stdlib/types/array';
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import { PropertyName } from '@stdlib/types/object';
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/**
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* Tests whether at least one element in a provided array has a specified own property.
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*
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* @param arr - input array
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* @param prop - property
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* @returns result
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*
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* @example
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* var o1 = {
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* 'a': 1
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* };
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* var o2 = {
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* 'b': 2
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* };
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* var o3 = {
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* 'c': 3
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* };
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*
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* var bool = anyHasOwnProp( [ o1, o2, o3 ], 'b' );
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* // returns true
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*
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* bool = anyHasOwnProp( [ o1, o2, o3 ], 'd' );
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* // returns false
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*
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* bool = anyHasOwnProp( [ o1, o2, o3 ], 'toString' );
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* // returns false
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*/
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declare function anyHasOwnProp( arr: Collection<unknown> | AccessorArrayLike<unknown>, prop: PropertyName | number ): boolean;
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// EXPORTS //
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export = anyHasOwnProp;

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