import { AbstractControl } from '../models';
export declare class FormArray {
    controls: AbstractControl[];
    /**
     * Getter for the length of controls
     * @readonly
     * @type {number}
     * @memberof FormArray
     */
    get length(): number;
    /**
     * Getter for the controls value
     * @readonly
     * @type {any[]}
     * @memberof FormArray
     */
    get value(): any[];
    /**
     * Getter for controls validity
     * @readonly
     * @type {boolean}
     * @memberof FormArray
     */
    get valid(): boolean;
    /**
     * Getter for the array touched value
     * @readonly
     * @type {boolean}
     * @memberof FormArray
     */
    get touched(): boolean;
    /**
     * Initialize the FormArray instance
     * @param controls - controls for the FormArray
     */
    constructor(controls: AbstractControl[]);
    /**
     * Get control at the given index in the array of controls
     * @param index - the index number of the control
     * @returns AbstractControl at the given index
     */
    at(index: number): AbstractControl;
    /**
     * Add a new control at the end of the array of controls
     * @param control - new AbstractControl
     */
    push(control: AbstractControl): void;
    /**
     * Insert a new control at the given index in the array of controls
     * @param index - index number where we want to insert the control
     * @param control - new AbstractControl
     */
    insert(index: number, control: AbstractControl): void;
    /**
     * Remove control at the given index from the array of controls
     * @param index - the index number of the control we want to delete
     */
    removeAt(index: number): void;
    /**
     * Replace an existing control at the given index in the array of controls
     * @param index - the index number of the control we want to replace
     * @param control - new AbstractControl
     */
    setControl(index: number, control: AbstractControl): void;
    /**
     * Resets all the controls in this array to the initial value,
     * setting all of it as untouched, resetting error
     * and setting validators to the initial value
     */
    reset(): void;
    /**
     * Remove all controls from this array
     */
    clear(): void;
    /**
     * Marks all the controls in this array as touched
     */
    markAllAsTouched(): void;
    /**
     * Patches the value of this array
     * @param values - array of values for the controls
     */
    patchValue(values: any[]): void;
    /**
     * Private method for checking validaty of the controls
     * @returns if all controls are valid returns true, if not return false
     */
    private _checkIsValid;
    /**
     * Private method for getting controls as array of values
     * @returns array of controls value
     */
    private _getValueAsArray;
    /**
     * Private method for checking touched of the controls in this array
     * @returns true if any control in this array is touched, false if all controls are untouched.
     */
    private _checkIsTouched;
}