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@stdlib/assert

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Standard assertion utilities.

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<!-- @license Apache-2.0 Copyright (c) 2018 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. --> # isArrayLikeObject > Test if a value is an array-like object. <section class="usage"> ## Usage ```javascript var isArrayLikeObject = require( '@stdlib/assert/is-array-like-object' ); ``` #### isArrayLikeObject( value ) Tests if a value is an [array-like][array-like] `object`. <!-- eslint-disable object-curly-newline --> ```javascript var bool = isArrayLikeObject( [] ); // returns true bool = isArrayLikeObject( { 'length': 10 } ); // returns true ``` If provided a `string`, the function returns `false`. ```javascript var bool = isArrayLikeObject( 'beep' ); // returns false ``` </section> <!-- /.usage --> <section class="examples"> ## Examples <!-- eslint-disable object-curly-newline, object-curly-spacing, no-empty-function, no-restricted-syntax --> <!-- eslint no-undef: "error" --> ```javascript var Float64Array = require( '@stdlib/array/float64' ); var isArrayLikeObject = require( '@stdlib/assert/is-array-like-object' ); var bool = isArrayLikeObject( { 'length': 10 } ); // returns true bool = isArrayLikeObject( [] ); // returns true bool = isArrayLikeObject( new Float64Array( 10 ) ); // returns true bool = (function test() { return isArrayLikeObject( arguments ); })(); // returns true bool = isArrayLikeObject( 'beep' ); // returns false bool = isArrayLikeObject( null ); // returns false bool = isArrayLikeObject( void 0 ); // returns false bool = isArrayLikeObject( 5 ); // returns false bool = isArrayLikeObject( true ); // returns false bool = isArrayLikeObject( {} ); // returns false bool = isArrayLikeObject( function noop() {} ); // 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`][@stdlib/assert/is-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array.</span> - <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-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"> [array-like]: http://www.2ality.com/2013/05/quirk-array-like-objects.html <!-- <related-links> --> [@stdlib/assert/is-array]: https://github.com/stdlib-js/assert/tree/main/is-array [@stdlib/assert/is-array-like]: https://github.com/stdlib-js/assert/tree/main/is-array-like [@stdlib/assert/is-collection]: https://github.com/stdlib-js/assert/tree/main/is-collection <!-- </related-links> --> </section> <!-- /.links -->