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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. */ /// <reference types="@stdlib/types"/> import { Collection, AccessorArrayLike, TypedArray, BooleanArray } from '@stdlib/types/array'; /** * Checks whether an element in a collection passes a test. * * @returns boolean indicating whether an element in a collection passes a test */ type Nullary<U> = ( this: U ) => boolean; /** * Checks whether an element in a collection passes a test. * * @param value - collection value * @returns boolean indicating whether an element in a collection passes a test */ type Unary<T, U> = ( this: U, value: T ) => boolean; /** * Checks whether an element in a collection passes a test. * * @param value - collection value * @param index - collection index * @returns boolean indicating whether an element in a collection passes a test */ type Binary<T, U> = ( this: U, value: T, index: number ) => boolean; /** * Checks whether an element in a collection passes a test. * * @param value - collection value * @param index - collection index * @param collection - input collection * @returns boolean indicating whether an element in a collection passes a test */ type Ternary<T, U> = ( this: U, value: T, index: number, collection: Collection<T> ) => boolean; /** * Checks whether an element in a collection passes a test. * * @param value - collection value * @param index - collection index * @param collection - input collection * @returns boolean indicating whether an element in a collection passes a test */ type Predicate<T, U> = Nullary<U> | Unary<T, U> | Binary<T, U> | Ternary<T, U>; /** * Interface describing `cuanyByRight`. */ interface CuanyByRight { /** * Cumulatively tests whether at least one array element in a provided array passes a test implemented by a predicate function, while iterating from right-to-left. * * @param x - input array * @param predicate - test function * @param thisArg - execution context * @returns output array * * @example * function isPositive( v ) { * return v > 0; * } * var x = [ 0, 1, 1, 0, 0 ]; * * var y = cuanyByRight( x, isPositive ); * // returns [ false, false, true, true, true ] */ <T = unknown, U = unknown>( x: Collection<T> | AccessorArrayLike<T>, predicate: Predicate<T, U>, thisArg?: ThisParameterType<Predicate<T, U>> ): Array<boolean>; /** * Cumulatively tests whether at least one array element in a provided array passes a test implemented by a predicate function, while iterating from right-to-left, and assigns the results to the provided output array. * * @param x - input array * @param y - output array * @param stride - output array stride * @param offset - output array offset * @param predicate - test function * @param thisArg - execution context * @returns output array * * @example * function isPositive( v ) { * return v > 0; * } * var x = [ 1, 1, 0, 0, 0 ]; * var y = [ false, null, false, null, false, null, false, null, false, null ]; * * var arr = cuanyByRight.assign( x, y, 2, 0, isPositive ); * // returns [ false, null, false, null, false, null, true, null, true, null ] */ assign<T = unknown, U = unknown, V = unknown>( x: Collection<T> | AccessorArrayLike<T>, out: Array<U>, stride: number, offset: number, predicate: Predicate<T, V>, thisArg?: ThisParameterType<Predicate<T, V>> ): Array<U | boolean>; /** * Cumulatively tests whether at least one array element in a provided array passes a test implemented by a predicate function, while iterating from right-to-left, and assigns the results to the provided output array. * * @param x - input array * @param out - output array * @param stride - output array stride * @param offset - output array offset * @param predicate - test function * @param thisArg - execution context * @returns output array * * @example * var BooleanArray = require( './../../../../bool' ); * * function isPositive( v ) { * return ( v > 0 ); * } * var x = [ 0, 0, 0, 1, 0 ]; * var y = new BooleanArray( [ false, false, false, false, false, false, false, false, false, false ] ); * * var arr = cuanyByRight.assign( x, y, 2, 0, isPositive ); * // returns <BooleanArray> * * var v = arr.get( 6 ); * // returns true */ assign<T, U extends TypedArray | BooleanArray, V = unknown>( x: Collection<T> | AccessorArrayLike<T>, out: U, stride: number, offset: number, predicate: Predicate<T, V>, thisArg?: ThisParameterType<Predicate<T, V>> ): U; /** * Cumulatively tests whether at least one array element in a provided array passes a test implemented by a predicate function, while iterating from right-to-left, and assigns the results to the provided output array. * * @param x - input array * @param out - output array * @param stride - output array stride * @param offset - output array offset * @param predicate - test function * @param thisArg - execution context * @returns output array * * @example * function isPositive( v ) { * return ( v > 0 ); * } * var x = [ 0, 0, 0, 1, 0 ]; * var y = [ false, null, false, null, false, null, false, null, false, null ]; * * var arr = cuanyByRight.assign( x, y, 2, 0, isPositive ); * // returns [ false, null, false, null, false, null, true, null, true, null ] */ assign<T = unknown, U = unknown, V = unknown>( x: Collection<T> | AccessorArrayLike<T>, out: Collection<U> | AccessorArrayLike<U>, stride: number, offset: number, predicate: Predicate<T, V>, thisArg?: ThisParameterType<Predicate<T, V>> ): Collection<U | boolean> | AccessorArrayLike<U | boolean>; } /** * Cumulatively tests whether at least one array element in a provided array passes a test implemented by a predicate function, while iterating from right-to-left. * * @param x - input array * @param predicate - test function * @param thisArg - execution context * @returns output array * * @example * function isPositive( v ) { * return v > 0; * } * var x = [ 1, 1, 0, 0, 0 ]; * * var result = cuanyByRight( x, isPositive ); * // returns [ false, false, false, true, true ] * * @example * function isPositive( v ) { * return v > 0; * } * var x = [ 0, 1, 1, 0, 0 ]; * var y = [ false, null, false, null, false, null, false, null, false, null ]; * * var arr = cuanyByRight.assign( x, y, 2, 0, isPositive ); * // returns [ false, null, false, null, false, null, true, null, true, null ] */ declare var cuanyByRight: CuanyByRight; // EXPORTS // export = cuanyByRight;