⏱️ Countdown Timer Library

// Basic usage
const timer = new Timer({
  duration: 120,
  onTick: (t) => console.log("Time left:", t),
  onComplete: () => alert("Done!")
});

timer.start();

// Pause and resume
timer.pause();
timer.resume();

// Stop and reset
timer.stop();
timer.reset();

// Format time
timer.format(); // "01:25"
timer.format("hh:mm:ss"); // "00:01:25"

// Countdown to date
const dateTimer = Timer.toDate("2025-01-01T00:00:00Z", {
  onTick: (t) => console.log(t),
  onComplete: () => console.log("Happy New Year!")
});

// Auto-start
const autoTimer = new Timer({
  duration: 30,
  autoStart: true
});

// Millisecond precision
const msTimer = new Timer({
  duration: 5000, // 5 seconds in milliseconds
  precision: "millisecond",
  onTick: (t) => console.log(t)
});

// Static start method
const quickTimer = Timer.start(60); // Creates and starts a 60-second timer