Test if a value is an array-like object supporting the accessor (get/set) protocol.
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> Test if a value is an array-like object supporting the accessor (get/set) protocol.
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.
``bash`
npm install @stdlib/assert-is-accessor-array
`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
// 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
`
`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
`
*
- [@stdlib/assert-is-array-like][@stdlib/assert/is-array-like]: test if a value is array-like.
- [@stdlib/assert-is-array-like-object][@stdlib/assert/is-array-like-object]: test if a value is an array-like object.
- [@stdlib/assert-is-collection][@stdlib/assert/is-collection]: test if a value is a collection.
*
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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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[npm-url]: https://npmjs.org/package/@stdlib/assert-is-accessor-array
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[stdlib]: https://github.com/stdlib-js/stdlib
[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors
[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/assert-is-accessor-array/tree/deno
[deno-readme]: https://github.com/stdlib-js/assert-is-accessor-array/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/assert-is-accessor-array/tree/umd
[umd-readme]: https://github.com/stdlib-js/assert-is-accessor-array/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/assert-is-accessor-array/tree/esm
[esm-readme]: https://github.com/stdlib-js/assert-is-accessor-array/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/assert-is-accessor-array/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/assert-is-accessor-array/main/LICENSE
[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
[@stdlib/assert/is-array-like]: https://www.npmjs.com/package/@stdlib/assert-is-array-like
[@stdlib/assert/is-array-like-object]: https://www.npmjs.com/package/@stdlib/assert-is-array-like-object
[@stdlib/assert/is-collection]: https://www.npmjs.com/package/@stdlib/assert-is-collection