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function secondsToMmSs(seconds) {
if (isNaN(seconds)) {
return "00:00";
}
const minutes = Math.floor(seconds / 60);
const remainingSeconds = seconds % 60;
const formattedMinutes = String(minutes).padStart(2, '0');
const formattedSeconds = String(remainingSeconds).padStart(2, '0');
return `${formattedMinutes}:${formattedSeconds}`;
}
// Example usage:
console.log(secondsToMmSs(65)); // Output: "01:05"
console.log(secondsToMmSs(3600)); // Output: "60:00"