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acinader/formatTime.html

Created May 3, 2018 16:25
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Format seconds into minutes:seconds
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formatTime.html
<html>
<span id='time'></span>
<script>
var formatTime = function formatTime(element, time) {
var min = Math.floor(time / 60);
var sec = time % 60;
element.innerHTML = min + ':' + pad(sec);
};
var pad = function pad(number) {
return number < 10 ? '0' + number : number;
};
var time = 300;
var timeDisplay = document.getElementById('time');
formatTime(timeDisplay, time);
var timerId = setInterval(function() {
time = time - 1;
formatTime(timeDisplay, time);
if (time === 0) {
clearInterval(timerId);
// Done!
}
}, 1000);
</script>
</html>
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