Convert seconds to minutes:seconds using JavaScript

I recently had to convert a variable that was in seconds to a minute:seconds format. E.g. 127 = 2:07. Here is how I did it:

var secondsToConvert = 127; // Or whatever
var minutes          = Math.floor(secondsToConvert / 60);
var seconds          = Math.floor(secondsToConvert % 60);
seconds              = seconds < 10 ? '0' + String(seconds) : String(seconds); // Prefixes a zero if needed
var formattedTime    = minutes + ':' + seconds;

console.log(formattedTime); // 2:07