On Thursday 10 September 2015 15:48, Namal wrote: > Hello, > > how can I define the range for the sum function which I want to > sum up? For instance how do I sum up the first 3 elements of an > array > > int[] a = [1,2,3,4,5,6,7,8,9]; > > or the last 3?
First you slice the first/last 3, then you sum them. first 3: a[0 .. 3].sum last 3: a[$ - 3 .. $].sum