/**
 * @license MIT
 * @copyright 2024 Thinh Trinh Duc <thinh.duc.trinh@gmail.com>
 *
 * @class
 */
export declare class Stack<T> {
    #private;
    /**
     * Create a new stack
     */
    constructor(...elements: T[]);
    /**
     * Creates a stack from the existing array
     * @public
     * @static
     * @param {array} [elements]
     * @return {Stack}
     */
    static fromArray<T>(arr: T[]): Stack<T>;
    /**
     * Stack's size
     * @readonly
     */
    get size(): number;
    /**
     * Check if the stack is empty.
     */
    isEmpty(): boolean;
    /**
     *
     * Removes the last element from a stack and returns it.
     * If the stack is empty, undefined is returned and the stack is not modified.
     */
    pop(): T | undefined;
    /**
     * Push new elements to the end of a stack, and returns the new size of the stack.
     */
    push(...value: T[]): number;
    /**
     * Returns the top element without removing it
     */
    peek(): T | undefined;
    /**
     * Clear stack
     */
    clear(): this;
    /**
     * Convert stack to array
     */
    toArray(): T[];
}
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