core-fed-util/dist/dataStructure/Stack.js

This is A collection of commonly used frontend utility functions‌

/**
 * Stack implementation in JavaScript
 */
export class Stack {
    constructor() {
        this.items = [];
    }
    /**
     * @description Adds an item to the stack.
     * @param {*} element
     */
    push(element) {
        this.items.push(element);
    }
    /**
     * @description Removes the last item from the stack.
     * @returns {*} The last item in the stack.
     */
    pop() {
        if (this.isEmpty()) {
            return "[Stack is empty]";
        }
        return this.items.pop();
    }
    /**
     * @description Gets the last item in the stack without removing it.
     * @returns {*} The last item in the stack.
     */
    peek() {
        return this.items[this.items.length - 1];
    }
    /**
     * @description Checks if the stack is empty.
     * @returns {boolean} True if the stack is empty, false otherwise.
     */
    isEmpty() {
        return this.items.length === 0;
    }
    /**
     * @description Gets the size of the stack.
     * @returns {number}
     */
    size() {
        return this.items.length;
    }
    /**
     * @description print stack.
     * @returns {string} A string representation of the stack.
     */
    printStack() {
        let str = "";
        for (let i = 0; i < this.size(); i++) {
            str += this.items[i] + " ";
        }
        return str;
    }
    /**
     * @description Checks if the stack has an item.
     * @param {*} callback
     */
    excute(callback) {
        while (!this.isEmpty()) {
            const item = this.pop();
            if (typeof item === "function") {
                item();
            }
            else
                (callback(item));
        }
    }
    /**
     * @description Clears the stack.
     */
    clear() {
        this.items = [];
    }
}