스택 (Stack)

LIFO 선입 선출

스택의 연산

• push
• pop

구현

class Stack {
    #array;
    constructor(arr = []) {
        if(!Array.isArray(arr)) {
            throw new TypeError(`${arr} is not an array`);
        }
        this.#array = arr;
    }
    push(x) {
        return this.#array.push(x);
    }
    pop() {
        return this.#array.pop();
    }
    entries() {
        return this.#array;
    }
}

var stack = new Stack([1,2,3,4]);

참고

• https://helloworldjavascript.net/pages/282-data-structures.html