@stdlib/assert/instance-of/docs/types/index.d.ts

Standard assertion utilities.

/*
* @license Apache-2.0
*
* Copyright (c) 2021 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

/**
* Tests whether a value has in its prototype chain a specified constructor as a prototype property.
*
* @param value - value to test
* @param constructor - constructor to test against
* @throws constructor must be callable
* @returns boolean indicating whether a value is an instance of a provided constructor
*
* @example
* var bool = instanceOf( [], Array );
* // returns true
*
* @example
* var bool = instanceOf( {}, Object ); // exception
* // returns true
*
* @example
* var bool = instanceOf( 'beep', String );
* // returns false
*
* @example
* var bool = instanceOf( null, Object );
* // returns false
*
* @example
* var bool = instanceOf( 5, Object );
* // returns false
*/
declare function instanceOf( value: any, constructor: Function ): boolean;


// EXPORTS //

export = instanceOf;