For Loop

for (var i = 0; i < 10; i += 1) print(i)
print("-----------")
var b = 5for (; b < 10; b += 2) print(b)

Two loops. The first one's variable starts at 0, and stops when it's not smaller than 10 anymore (greater or equal to). The second loop is using an existing variable starting at 5, and ending when its greater or equal to 10, but incrementing by 2.