Major Differences Between C# and Unity JavaScript - Unity 4 Game Development - page 638

The foreach keyword
C# iterators use foreach instead of for . Also notice the variable declaration within the
for/foreach statement in the following code. C# requires the type of the item con-
tained in the list to be explicitly declared:
// JavaScript user:
for (var item in itemList) {
item.DoSomething();
}
// C# user:
foreach (ItemType item in itemList) {
item.DoSomething();
}