@typescript-package/history/lib/peek/undo-history-peek.class.d.ts

A TypeScript package for tracking the history of values.

import { History } from '../history.abstract';
/**
 * @description The class
 * @export
 * @class UndoHistoryPeek
 * @template Type
 */
export declare class UndoHistoryPeek<Type> {
    private readonly history;
    /**
     * Creates an instance of `UndoHistoryPeek` child class.
     * @constructor
     * @param {History<Type>} history
     */
    constructor(history: History<Type>);
    /**
     * @description
     * @public
     * @param {number} [index=this.history.undoHistory.length - 1]
     * @returns {(Type | undefined)}
     */
    index(index?: number): Type | undefined;
    /**
     * @description
     * @public
     * @returns {(Type | undefined)}
     */
    last(): Type | undefined;
    /**
     * @description
     * @public
     * @returns {(Type | undefined)}
     */
    next(): Type | undefined;
}