81 lines
3.6 KiB
TypeScript
81 lines
3.6 KiB
TypeScript
import { MemoListIterator } from '../_internal/MemoListIterator.mjs';
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import { MemoObjectIterator } from '../_internal/MemoObjectIterator.mjs';
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/**
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* Reduces an array to a single value using an iteratee function.
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*
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* @param {T[] | null | undefined} collection - The array to iterate over
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* @param {MemoListIterator<T, U, T[]>} callback - The function invoked per iteration
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* @param {U} accumulator - The initial value
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* @returns {U} Returns the accumulated value
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*
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* @example
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* const array = [1, 2, 3];
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* reduce(array, (acc, value) => acc + value, 0); // => 6
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*/
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declare function reduce<T, U>(collection: T[] | null | undefined, callback: MemoListIterator<T, U, T[]>, accumulator: U): U;
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/**
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* Reduces an array-like object to a single value using an iteratee function.
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*
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* @param {ArrayLike<T> | null | undefined} collection - The array-like object to iterate over
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* @param {MemoListIterator<T, U, ArrayLike<T>>} callback - The function invoked per iteration
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* @param {U} accumulator - The initial value
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* @returns {U} Returns the accumulated value
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*
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* @example
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* const arrayLike = {0: 1, 1: 2, 2: 3, length: 3};
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* reduce(arrayLike, (acc, value) => acc + value, 0); // => 6
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*/
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declare function reduce<T, U>(collection: ArrayLike<T> | null | undefined, callback: MemoListIterator<T, U, ArrayLike<T>>, accumulator: U): U;
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/**
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* Reduces an object to a single value using an iteratee function.
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*
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* @param {T | null | undefined} collection - The object to iterate over
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* @param {MemoObjectIterator<T[keyof T], U, T>} callback - The function invoked per iteration
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* @param {U} accumulator - The initial value
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* @returns {U} Returns the accumulated value
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*
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* @example
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* const obj = { a: 1, b: 2, c: 3 };
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* reduce(obj, (acc, value) => acc + value, 0); // => 6
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*/
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declare function reduce<T extends object, U>(collection: T | null | undefined, callback: MemoObjectIterator<T[keyof T], U, T>, accumulator: U): U;
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/**
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* Reduces an array to a single value using an iteratee function.
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*
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* @param {T[] | null | undefined} collection - The array to iterate over
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* @param {MemoListIterator<T, T, T[]>} callback - The function invoked per iteration
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* @returns {T | undefined} Returns the accumulated value
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*
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* @example
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* const array = [1, 2, 3];
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* reduce(array, (acc, value) => acc + value); // => 6
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*/
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declare function reduce<T>(collection: T[] | null | undefined, callback: MemoListIterator<T, T, T[]>): T | undefined;
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/**
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* Reduces an array-like object to a single value using an iteratee function.
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*
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* @param {ArrayLike<T> | null | undefined} collection - The array-like object to iterate over
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* @param {MemoListIterator<T, T, ArrayLike<T>>} callback - The function invoked per iteration
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* @returns {T | undefined} Returns the accumulated value
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*
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* @example
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* const arrayLike = {0: 1, 1: 2, 2: 3, length: 3};
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* reduce(arrayLike, (acc, value) => acc + value); // => 6
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*/
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declare function reduce<T>(collection: ArrayLike<T> | null | undefined, callback: MemoListIterator<T, T, ArrayLike<T>>): T | undefined;
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/**
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* Reduces an object to a single value using an iteratee function.
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*
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* @param {T | null | undefined} collection - The object to iterate over
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* @param {MemoObjectIterator<T[keyof T], T[keyof T], T>} callback - The function invoked per iteration
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* @returns {T[keyof T] | undefined} Returns the accumulated value
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*
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* @example
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* const obj = { a: 1, b: 2, c: 3 };
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* reduce(obj, (acc, value) => acc + value); // => 6
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*/
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declare function reduce<T extends object>(collection: T | null | undefined, callback: MemoObjectIterator<T[keyof T], T[keyof T], T>): T[keyof T] | undefined;
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export { reduce };
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