export type ArrayIteratorBase<T> = (item: T, i?: number, array?: T[]) => void;
export type ArrayIteratorCheck<T> = (item: T, i?: number) => boolean;
export type ArrayIteratorCheckOld<T> = (i: number, item: T) => boolean;
export type ArrayIteratorAny<T, T2> = (item: T, i?: number) => T2;
export declare const arrayRemove: <T>(array: T[], item: T) => boolean;
export declare const arrEachReverse: <T>(array: T[], fn: ArrayIteratorBase<T>) => void;
export declare const arrFirst: <T>(array: T[], fn: ArrayIteratorCheck<T>) => T | undefined;