Method push

lib/internal/fixed_queue.js:102–109

(data)

  }

  push(data) {
    if (this.head.isFull()) {
      // Head is full: Creates a new queue, sets the old queue's `.next` to it,
      // and sets it as the new main queue.
      this.head = this.head.next = FixedQueue.#pool.pop() ?? new FixedCircularBuffer();
    }
    this.head.push(data);
  }

  shift() {
    const tail = this.tail;