javascript LeastConnectionQueue

class LeastConnectionQueue {
  constructor() {
    this.servers = [];
  }

  addServer(server) {
    this.servers.push(server);
  }

  removeServer(server) {
    this.servers = this.servers.filter(s => s !== server);
  }

  getLeastConnectedServer() {
    let leastConnectedServer = this.servers[0];
    for (let i = 1; i < this.servers.length; i++) {
      if (this.servers[i].connectionCount < leastConnectedServer.connectionCount) {
        leastConnectedServer = this.servers[i];
      }
    }
    return leastConnectedServer;
  }
}

class Server {
  constructor(name) {
    this.name = name;
    this.connectionCount = 0;
  }

  addConnection() {
    this.connectionCount++;
  }

  removeConnection() {
    this.connectionCount--;
  }
}

const queue = new LeastConnectionQueue();

const server1 = new Server("Server 1");
const server2 = new Server("Server 2");
const server3 = new Server("Server 3");

queue.addServer(server1);
queue.addServer(server2);
queue.addServer(server3);

server1.addConnection();
server2.addConnection();
server2.addConnection();

console.log(queue.getLeastConnectedServer().name); // Server 1

server3.addConnection();

console.log(queue.getLeastConnectedServer().name); // Server 1

server1.addConnection();

console.log(queue.getLeastConnectedServer().name); // Server 3