Code Inspection: Loop can be converted into LINQ-expression
When ReSharper determines that you are iterating an
loop, it may offer to convert this
loop into a LINQ expression. For example, the following code:
int c = 1; for (int i = 0; i < numbers.Length; ++i) c *= numbers[i];
can be automatically converted to
int c = numbers.Aggregate(1, (current, t) => current*t);
ReSharper is typically smart enough to identify which LINQ operators can express the operations that are defined
in the loop. For example, if we had
c += numbers[i]
in the loop above, ReSharper would reduce the expression to
But what are the advantages of this approach? Well, one is that you do not have to do record-keeping related to
the iteration variable (the exception being the case where you really need the iteration variable).
Another benefit is that having a LINQ expression lets you all the LINQ-specific
benefits. For example, you can request the use of parallelization just by adding the
.AsParallel() method call right after the collection name.
This will instruct the runtime to use PLINQ (Parallel LINQ), which can speed up your calculations.