gistfile1.txt

const departments = {
  engineering: {
    budget: 500000,
    headcount: 45,
    location: "Building A",
  },
  marketing: {
    budget: 300000,
    headcount: 20,
    location: "Building B",
  },
};

const projects = {
  alphaRelease: {
    budget: 150000,
    duration: 6,
    priority: "high",
  },
  betaPrototype: {
    budget: 80000,
    duration: 3,
    priority: "medium",
  },
};

export function extractMetric(data, key, metric, formatter) {
  const entry = data[key];
  const value = entry[metric];
  const formatted = formatter(value);
  return formatted;
}

function formatString (value) {
  return value.toUpperCase()
}

function formatNumber(value) {
  return value.toFixed(2)
}

const headcount = extractMetric(departments, "engineering", "headcount", formatNumber);
console.log('engineering headcount:', headcount);

const duration = extractMetric(projects, "alphaRelease", "priority", formatString);
console.log('alphaRelease priority:', duration);

// This version should throw a type error
// const invalid = extractMetric(departments, "marketing", "budget", formatString);
// console.log('marketing budget:', invalid);