import { IMedia } from '../types';
export declare const MOBILE_WIDTH_THRESHOLD = 740;
declare abstract class Helpers {
    static createArray(length: number): unknown[];
    static chunkArray<T>(array: T[], chunkSize: number): T[][];
    static getAbsoluteBackgroundColor(element?: Element | null): string;
    static isValidJson(jsonString: string): boolean;
    /**
     * Check if the client device is a mobile
     */
    static isMobile(width: number): boolean;
    static pushPostToHistory(post: IMedia): void;
    static replacePostInHistory(post: IMedia): void;
    static uniqId(): string;
    /**
     * Randomly create an id that have low chances to collide
     */
    static randomId(): string;
}
export { Helpers };