Forward piping

- [Instructor] Now let's imagine that those ScreenItems…were part of a graphics program,…so part of the system to present values on a screen.…And maybe you only want to pick out values…which were created since a certain date and time.…This is how you would do it.…You'd declare yourself a function…called ScreenItemsCreatedSince.…Obviously you'd need to provide a value for the since time.…And you'd need to provide…an actual list of items…that you're going to sort through.…

And the way you actually achieve this…is you take the incoming items…and you call the Array.filter function.…Array is just a module of useful functions,…which you can use to do things to arrays.…And this, if you're fluent with F#, is a lambda function.…So we're declaring a function on the fly.…That function takes a single argument,…which we're going to call item.…And then the body of the function, simply returns true…if it's CreatedAt date was later than the since,…which comes in as a parameter value here.…

And let's say also we want to sort these…