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base/assert/is-complex128array/README.md

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+<!--
+
+@license Apache-2.0
+
+Copyright (c) 2024 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.
+
+-->
+
+# isComplex128Array
+
+> Test if a value is a [`Complex128Array`][@stdlib/array/complex128].
+
+<section class="intro">
+
+</section>
+
+<!-- ./intro -->
+
+<section class="usage">
+
+## Usage
+
+```javascript
+var isComplex128Array = require( '@stdlib/array/base/assert/is-complex128array' );
+```
+
+#### isComplex128Array( value )
+
+Tests if a value is a [`Complex128Array`][@stdlib/array/complex128].
+
+```javascript
+var Complex128Array = require( '@stdlib/array/complex128' );
+
+var arr = new Complex128Array( 10 );
+var bool = isComplex128Array( arr );
+// returns true
+```
+
+</section>
+
+<!-- /.usage -->
+
+<section class="notes">
+
+## Notes
+
+-   This function is not robust and that is intentional. This function provides a lower cost way to reasonably determine whether an input value is a [`Complex128Array`][@stdlib/array/complex128] in order to avoid walking the prototype chain and resolving constructors, which is necessary for robust identification of cross-realm instances. For more robust validation, see [`@stdlib/assert/is-complex128array`][@stdlib/assert/is-complex128array].
+
+</section>
+
+<!-- /.notes -->
+
+<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 isComplex128Array = require( '@stdlib/array/base/assert/is-complex128array' );
+
+var bool = isComplex128Array( new Complex128Array( 10 ) );
+// returns true
+
+bool = isComplex128Array( new Complex64Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( [] );
+// returns false
+
+bool = isComplex128Array( new Float64Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( new Float32Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( new Int32Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( new Uint32Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( new Int16Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( new Uint16Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( new Int8Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( new Uint8Array( 10 ) );
+// returns false
+
+bool = isComplex128Array( new Uint8ClampedArray( 10 ) );
+// returns false
+
+bool = isComplex128Array( { 'length': 0 } );
+// returns false
+```
+
+</section>
+
+<!-- /.examples -->
+
+<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->
+
+<section class="related">
+
+</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">
+
+[@stdlib/array/complex128]: https://github.com/stdlib-js/array/tree/main/complex128
+
+[@stdlib/assert/is-complex128array]: https://github.com/stdlib-js/stdlib
+
+<!-- <related-links> -->
+
+<!-- </related-links> -->
+
+</section>
+
+<!-- /.links -->

base/assert/is-complex128array/benchmark/benchmark.js

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+/**
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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.
+*/
+
+'use strict';
+
+// MODULES //
+
+var bench = require( '@stdlib/bench' );
+var Float64Array = require( './../../../../float64' );
+var Complex128Array = require( './../../../../complex128' );
+var isBoolean = require( '@stdlib/assert/is-boolean' ).isPrimitive;
+var pkg = require( './../package.json' ).name;
+var isComplex128Array = require( './../lib' );
+
+
+// MAIN //
+
+bench( pkg+'::array', function benchmark( b ) {
+	var bool;
+	var obj;
+	var i;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		obj = [ i, i+1 ];
+		bool = isComplex128Array( obj );
+		if ( typeof bool !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( pkg+'::real_typed_array', function benchmark( b ) {
+	var values;
+	var bool;
+	var obj;
+	var N;
+	var i;
+
+	values = [
+		new Float64Array( [ 1.0, 2.0 ] ),
+		new Float64Array( [ 3.0, 4.0 ] )
+	];
+	N = values.length;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		obj = values[ i%N ];
+		bool = isComplex128Array( obj );
+		if ( typeof bool !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( pkg+'::complex_typed_array', function benchmark( b ) {
+	var values;
+	var bool;
+	var obj;
+	var N;
+	var i;
+
+	values = [
+		new Complex128Array( [ 1.0, 2.0 ] ),
+		new Complex128Array( [ 3.0, 4.0 ] )
+	];
+	N = values.length;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		obj = values[ i%N ];
+		bool = isComplex128Array( obj );
+		if ( typeof bool !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});
+
+bench( pkg+'::array_like_object', function benchmark( b ) {
+	var bool;
+	var obj;
+	var i;
+
+	b.tic();
+	for ( i = 0; i < b.iterations; i++ ) {
+		obj = {
+			'length': 2,
+			'0': i,
+			'1': i + 1
+		};
+		bool = isComplex128Array( obj );
+		if ( typeof bool !== 'boolean' ) {
+			b.fail( 'should return a boolean' );
+		}
+	}
+	b.toc();
+	if ( !isBoolean( bool ) ) {
+		b.fail( 'should return a boolean' );
+	}
+	b.pass( 'benchmark finished' );
+	b.end();
+});

base/assert/is-complex128array/docs/repl.txt

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+
+{{alias}}( value )
+    Tests if a value is a Complex128Array.
+
+    Parameters
+    ----------
+    value: ArrayLikeObject
+        Value to test.
+
+    Returns
+    -------
+    bool: boolean
+        Boolean indicating whether a value is a Complex128Array.
+
+    Examples
+    --------
+    > var bool = {{alias}}( new {{alias:@stdlib/array/complex128}}( 10 ) )
+    true
+    > bool = {{alias}}( [] )
+    false
+    > bool = {{alias}}( { 'length': 0 } )
+    false
+
+    See Also
+    --------
+

base/assert/is-complex128array/docs/types/index.d.ts

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+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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.
+*/
+
+// TypeScript Version: 4.1
+
+/// <reference types="@stdlib/types"/>
+
+import { Collection, Complex128Array } from '@stdlib/types/array';
+
+/**
+* Tests if a value is a `Complex128Array`.
+*
+* @param value - value to test
+* @returns boolean indicating whether a value is a `Complex128Array`
+*
+* @example
+* var Complex128Array = require( '@stdlib/array/complex128' );
+*
+* var arr = new Complex128Array( 10 );
+* var bool = isComplex128Array( arr );
+* // returns true
+*
+* @example
+* var bool = isComplex128Array( [] );
+* // returns false
+*/
+declare function isComplex128Array( value: Collection | Complex128Array ): value is Complex128Array;
+
+
+// EXPORTS //
+
+export = isComplex128Array;

base/assert/is-complex128array/docs/types/test.ts

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+/*
+* @license Apache-2.0
+*
+* Copyright (c) 2024 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.
+*/
+
+import isComplex128Array = require( './index' );
+
+
+// TESTS //
+
+// The function returns a boolean...
+{
+	isComplex128Array( [] ); // $ExpectType boolean
+}
+
+// The compiler throws an error if the function is provided an unsupported number of arguments...
+{
+	isComplex128Array(); // $ExpectError
+	isComplex128Array( [], 123 ); // $ExpectError
+}