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@stdlib/assert

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Standard assertion utilities.

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/* * @license Apache-2.0 * * Copyright (c) 2019 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 /** * Interface defining `isSymbolArray` with methods for testing for primitive and object arrays, respectively. */ interface IsSymbolArray { /** * Tests if a value is an array-like object containing only symbols. * * ## Notes * * - In pre-ES2015 environments, the function always returns `false`. * * @param value - value to test * @returns boolean indicating whether value is an array of strings * * @example * var bool = isSymbolArray( [ Symbol( 'abc' ), Symbol( 'def' ) ] ); * // returns true * * @example * var bool = isSymbolArray( [ Symbol( 'abc' ), 'def' ] ); * // returns false */ ( value: any ): value is ArrayLike<symbol | Symbol>; /** * Tests if a value is an array-like object containing only `symbol` primitives. * * ## Notes * * - In pre-ES2015 environments, the function always returns `false`. * * @param value - value to test * @returns boolean indicating whether value is an array containing only string primitives * * @example * var bool = isSymbolArray.primitives( [ Symbol( 'abc' ), Symbol( 'def' ) ] ); * // returns true * * @example * var bool = isSymbolArray.primitives( [ Symbol( 'abc' ), Object( Symbol( 'def' ) ) ] ); * // returns false */ primitives( value: any ): value is ArrayLike<symbol>; /** * Tests if a value is an array-like object containing only `Symbol` objects. * * * ## Notes * * - In pre-ES2015 environments, the function always returns `false`. * * @param value - value to test * @returns boolean indicating whether a value is an array-like object containing only `Symbol` objects * * @example * var bool = isSymbolArray.objects( [ Object( Symbol( 'abc' ) ), Object( Symbol( 'def' ) ) ] ); * // returns true * * @example * var bool = isSymbolArray.objects( [ Symbol( 'abc' ), Symbol( 'def' ) ] ); * // returns false */ objects( value: any ): value is ArrayLike<Symbol>; } /** * Tests if a value is an array-like object containing only symbols. * * ## Notes * * - In pre-ES2015 environments, the function always returns `false`. * * @param value - value to test * @returns boolean indicating whether value is an array of strings * * @example * var bool = isSymbolArray( [ Symbol( 'abc' ), Symbol( 'def' ) ] ); * // returns true * * @example * var bool = isSymbolArray( [ Symbol( 'abc' ), 'def' ] ); * // returns false * * @example * var bool = isSymbolArray.primitives( [ Symbol( 'abc' ), Symbol( 'def' ) ] ); * // returns true * * @example * var bool = isSymbolArray.objects( [ Object( Symbol( 'abc' ) ), Object( Symbol( 'def' ) ) ] ); * // returns true */ declare var isSymbolArray: IsSymbolArray; // EXPORTS // export = isSymbolArray;