Queue

Directions

Create a queue data structure.
The queue should be a class with methods 'add' and 'remove'.
Adding to the queue should store an element until it is removed.
examples:

const q = new Queue();
q.add(1);
q.remove(); // returns 1;

Implementation

JS

Simple Queue

class Queue {
    constructor() {
        this.data = [];
    }

    printData() {
        console.log(JSON.stringify(this.data, null, 4));
    }

    add(record) {
        this.data.unshift(record);
    }

    peek() {
        const lastIndex = this.data.length > 0 ? this.data.length - 1 : 0;
        return this.data[lastIndex];
    }

    remove() {
        return this.data.pop();
    }
}

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