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@stdlib/array

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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, AccessorArrayLike } from '@stdlib/types/array'; /** * Returns a boolean indicating whether an element passes a test. * * @returns boolean indicating whether an element passes a test */ type Nullary<U> = ( this: U ) => boolean; /** * Returns a boolean indicating whether an element passes a test. * * @param value - current array element * @returns boolean indicating whether an element passes a test */ type Unary<T, U> = ( this: U, value: T ) => boolean; /** * Returns a boolean indicating whether an element passes a test. * * @param value - current array element * @param index - current array element index * @returns boolean indicating whether an element passes a test */ type Binary<T, U> = ( this: U, value: T, index: number ) => boolean; /** * Returns a boolean indicating whether an element passes a test. * * @param value - current array element * @param index - current array element index * @param arr - input array * @returns boolean indicating whether an element passes a test */ type Ternary<T, U> = ( this: U, value: T, index: number, arr: Collection<T> | AccessorArrayLike<T> ) => boolean; /** * Returns a boolean indicating whether an element passes a test. * * @param value - current array element * @param index - current array element index * @param arr - input array * @returns boolean indicating whether an element passes a test */ type Predicate<T, U> = Nullary<U> | Unary<T, U> | Binary<T, U> | Ternary<T, U>; /** * Tests whether all elements in an array fail a test implemented by a predicate function. * * ## Notes * * - The function immediately returns upon encountering a truthy return value. * - If provided an empty collection, the function returns `true`. * * @param x - input array * @param predicate - predicate function * @param thisArg - predicate function execution context * @returns boolean indicating whether all elements fail a test * * @example * function isPositive( v ) { * return v > 0; * } * * var x = [ 0, 0, 0, 0 ]; * * var out = noneBy( x, isPositive ); * // returns true */ declare function noneBy<T = unknown, U = unknown>( x: Collection<T> | AccessorArrayLike<T>, predicate: Predicate<T, U>, thisArg?: ThisParameterType<Predicate<T, U>> ): boolean; // EXPORTS // export = noneBy;