Zadania

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
<script type="text/javascript">
/*
var a = [1, 4, 62, 7, 4, 81, 5, 14, 5, 12];
console.log(a)
var z = 0;
var x = [];
for (var i =0;i< a.length;i++) {
    if(a[i]>12){
        z += 1;
        x.push(a[i])
    }
}
x.sort(function(a, b){return a-b})
console.log(x)
*/

var d = new Date("Juni 13, 2017 10:14:00");
var e = new Date("Juni 13, 2017 14:17:00");
min = ((e-d)/(1000*60))

if (min%60 != 0) {zusch = 4} else {
    zusch = 0;
}
console.log(((Math.round(min/60))*4)+zusch+2)

var a = [1, 4, 62, 7, 4, 81, 5, 14, 5, 12];
//console.log( a.sort(function(a, b){return a-b}) )
</script>
</head>
<body>

</body>
</html>