A simple Javascript Queue based on an Array wrap. More explanations here : https://insertafter.com/blog-fifo_lifo_javascript.html

Queue.js

class Queue {
  constructor(...elements) {
    // Initializing the queue with given arguments 
    this.elements = [...elements];
  }
  // Proxying the push/shift methods
  push(...args) {
    return this.elements.push(...args);
  }
  shift(...args) {
    return this.elements.shift(...args);
  }
  // Add some length utility methods
  getLength(...args) {
    return this.elements.length;
  }
  setLength(length) {
    return this.elements.length = length;
  }
}

// Usage
const q = new Queue(0,1);

q.push(2);

console.log(q.getLength()); // 3

while(q.getLength())
	console.log(q.shift()); // 0, 1, 2