import { PipeTransform } from "@angular/core";
import * as i0 from "@angular/core";
export declare class OrderPipe implements PipeTransform {
    /**
     * Check if a value is a string
     *
     * @param value
     */
    static isString(value: any): boolean;
    /**
     * Sorts values ignoring the case
     *
     * @param a
     * @param b
     */
    static caseInsensitiveSort(a: any, b: any): any;
    /**
     * Default compare method
     *
     * @param a
     * @param b
     */
    static defaultCompare(a: any, b: any): 0 | 1 | -1;
    /**
     * Parse expression, split into items
     * @param expression
     * @returns {string[]}
     */
    static parseExpression(expression: string): string[];
    /**
     * Get value by expression
     *
     * @param object
     * @param expression
     * @returns {any}
     */
    static getValue(object: any, expression: string[]): any;
    /**
     * Set value by expression
     *
     * @param object
     * @param value
     * @param expression
     */
    static setValue(object: any, value: any, expression: string[]): void;
    transform(value: any | any[], expression?: any, reverse?: boolean, isCaseInsensitive?: boolean, comparator?: Function): any;
    /**
     * Sort array, returns sorted array
     *
     * @param array
     * @param expression
     * @param reverse
     * @param isCaseInsensitive
     * @param comparator
     * @returns {Type[]}
     */
    private sortArray;
    /**
     * Transform Object
     *
     * @param value
     * @param expression
     * @param reverse
     * @param isCaseInsensitive
     * @param comparator
     * @returns {any[]}
     */
    private transformObject;
    /**
     * Apply multiple expressions
     *
     * @param value
     * @param {any[]} expressions
     * @param {boolean} reverse
     * @param {boolean} isCaseInsensitive
     * @param {Function} comparator
     * @returns {any}
     */
    private multiExpressionTransform;
    static ɵfac: i0.ɵɵFactoryDeclaration<OrderPipe, never>;
    static ɵpipe: i0.ɵɵPipeDeclaration<OrderPipe, "orderBy", false>;
}