Untitled

let balance = 1000; // initial balance in USD
let price = 50; // initial price of the stock in USD
let buyThreshold = 40; // buy when the price drops below this threshold
let sellThreshold = 60; // sell when the price rises above this threshold

function buy() {
  balance -= price;
  console.log(`Bought one stock for ${price} USD. Balance: ${balance} USD`);
}

function sell() {
  balance += price;
  console.log(`Sold one stock for ${price} USD. Balance: ${balance} USD`);
}

function updatePrice(newPrice) {
  if (newPrice < buyThreshold && balance > price) {
    price = newPrice;
    buy();
  } else if (newPrice > sellThreshold && balance < price) {
    price = newPrice;
    sell();
  } else {
    price = newPrice;
    console.log(`Price updated to ${price} USD.`);
  }
}

// simulate price updates over time
updatePrice(45); // buy one stock
updatePrice(30); // buy another stock
updatePrice(70); // sell one stock
updatePrice(80); // sell another stock
updatePrice(55); // do nothing