import * as i0 from "@angular/core";
export declare class FSUtilityService {
    protected _activePreloader: boolean;
    get activePreloader(): boolean;
    set activePreloader(status: boolean);
    constructor();
    getQueryParameter(key: string): string;
    getValueFromKey(name: string, url?: string): string;
    /**
     * Update query string key and value
     * @param key string
     * @param value string
     */
    updateQueryStringParam(key: string, value: string): void;
    /**
     * **CREATING FILE ABSOLUTE PATH**
     * @param relativePath
     * @returns
     */
    filePathHandler(relativePath: string): string;
    /**
     * **CONVERTS SIMPLE ARRAY TO PARENT CHILD ARRAY**
     * @param items array
     * @param key string
     * @returns group by array
     */
    groupBy(items: Array<any>, key: string): any;
    /**
     * **GET RANDOM NUMBER WITHIN GIVEN RANGE**
     * @param min number
     * @param max number
     * @returns random numer
     */
    getRandomInt(min: number, max: number): number;
    mobileAndTabletCheck: () => boolean;
    removeArrayElement(files: any, element: any): any;
    static ɵfac: i0.ɵɵFactoryDeclaration<FSUtilityService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<FSUtilityService>;
}