Linq: What is the difference between Select and Where
.net, linq, select, where-clause
Solution
Where
finds items that match and only returns those that do (filtering).
-> `IEnumerable<A>` in, `IEnumerable<A>` out
Select
returns something for all items in the source (projection / transformation). That something might be the items themselves, but are more usually a projection of some sort.
-> `IEnumerable<A>` in, `IEnumerable<B>` out
Problem
The `Select` and `Where` methods are available in Linq. What should every developer know about these two methods? For example: when to use one over the other, any advantages of using one over the other, etc.