/**
 * Array Utilities
 * Common array manipulation helpers
 */
/**
 * Creates an array of specified length and maps over it
 * Alternative to Array.from({ length }).map() which is more verbose
 *
 * @param length - Length of array to create
 * @param mapFn - Map function (receives index)
 * @returns Mapped array
 *
 * @example
 * createMappedArray(5, (i) => i * 2) // [0, 2, 4, 6, 8]
 */
export declare function createMappedArray<T>(length: number, mapFn: (index: number) => T): T[];
/**
 * Safely slice array to specified length
 * Returns empty array if input is null/undefined
 */
export declare function safeSlice<T>(array: T[] | undefined, start: number, end?: number): T[];
/**
 * Filter array by ID
 * Returns new array with item matching ID removed
 */
export declare function filterById<T extends {
    id: string;
}>(array: T[], idToRemove: string): T[];
/**
 * Find item in array by ID
 */
export declare function findById<T extends {
    id: string;
}>(array: T[], id: string): T | undefined;