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@stdlib/assert

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Standard assertion utilities.

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<!-- @license Apache-2.0 Copyright (c) 2022 The Stdlib Authors. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. --> # isAccessorArray > Test if a value is an array-like object supporting the accessor (get/set) protocol. <section class="intro"> An accessor array is defined as either an [`Array`][mdn-array], [`Typed Array`][mdn-typed-array], or an array-like [`Object`][mdn-object] (excluding `strings` and `functions`) having `get` and `set` methods for accessing array elements. </section> <!-- ./intro --> <section class="usage"> ## Usage ```javascript var isAccessorArray = require( '@stdlib/assert/is-accessor-array' ); ``` #### isAccessorArray( value ) Tests if a value is an array-like object supporting the accessor (get/set) protocol. ```javascript var Complex128Array = require( '@stdlib/array/complex128' ); var Complex128 = require( '@stdlib/complex/float64/ctor' ); // Create a new complex number array: var arr = new Complex128Array( 10 ); // Retrieve a complex number element: var z = arr.get( 0 ); // returns <Complex128> // Set a complex number element: arr.set( new Complex128( 1.0, 1.0 ), 0 ); // ... // Check whether an array is an accessor array: var bool = isAccessorArray( arr ); // returns true ``` </section> <!-- /.usage --> <section class="examples"> ## Examples <!-- eslint-disable object-curly-newline --> <!-- eslint no-undef: "error" --> ```javascript var Int8Array = require( '@stdlib/array/int8' ); var Uint8Array = require( '@stdlib/array/uint8' ); var Uint8ClampedArray = require( '@stdlib/array/uint8c' ); var Int16Array = require( '@stdlib/array/int16' ); var Uint16Array = require( '@stdlib/array/uint16' ); var Int32Array = require( '@stdlib/array/int32' ); var Uint32Array = require( '@stdlib/array/uint32' ); var Float32Array = require( '@stdlib/array/float32' ); var Float64Array = require( '@stdlib/array/float64' ); var Complex128Array = require( '@stdlib/array/complex128' ); var Complex64Array = require( '@stdlib/array/complex64' ); var isAccessorArray = require( '@stdlib/assert/is-accessor-array' ); var bool = isAccessorArray( new Complex128Array( 10 ) ); // returns true bool = isAccessorArray( new Complex64Array( 10 ) ); // returns true bool = isAccessorArray( [] ); // returns false bool = isAccessorArray( new Float64Array( 10 ) ); // returns false bool = isAccessorArray( new Float32Array( 10 ) ); // returns false bool = isAccessorArray( new Int32Array( 10 ) ); // returns false bool = isAccessorArray( new Uint32Array( 10 ) ); // returns false bool = isAccessorArray( new Int16Array( 10 ) ); // returns false bool = isAccessorArray( new Uint16Array( 10 ) ); // returns false bool = isAccessorArray( new Int8Array( 10 ) ); // returns false bool = isAccessorArray( new Uint8Array( 10 ) ); // returns false bool = isAccessorArray( new Uint8ClampedArray( 10 ) ); // returns false bool = isAccessorArray( { 'length': 0 } ); // returns false bool = isAccessorArray( {} ); // returns false bool = isAccessorArray( 'beep' ); // returns false bool = isAccessorArray( isAccessorArray ); // returns false bool = isAccessorArray( null ); // returns false bool = isAccessorArray( void 0 ); // returns false bool = isAccessorArray( 3.14 ); // returns false ``` </section> <!-- /.examples --> <!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. --> <section class="related"> * * * ## See Also - <span class="package-name">[`@stdlib/assert/is-array-like`][@stdlib/assert/is-array-like]</span><span class="delimiter">: </span><span class="description">test if a value is array-like.</span> - <span class="package-name">[`@stdlib/assert/is-array-like-object`][@stdlib/assert/is-array-like-object]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object.</span> - <span class="package-name">[`@stdlib/assert/is-collection`][@stdlib/assert/is-collection]</span><span class="delimiter">: </span><span class="description">test if a value is a collection.</span> </section> <!-- /.related --> <!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. --> <section class="links"> [mdn-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array [mdn-typed-array]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/TypedArray [mdn-object]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object <!-- <related-links> --> [@stdlib/assert/is-array-like]: https://github.com/stdlib-js/assert/tree/main/is-array-like [@stdlib/assert/is-array-like-object]: https://github.com/stdlib-js/assert/tree/main/is-array-like-object [@stdlib/assert/is-collection]: https://github.com/stdlib-js/assert/tree/main/is-collection <!-- </related-links> --> </section> <!-- /.links -->