From the course: Advanced C#: Functional Programming Patterns

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Rewrite FOREACH with expression

Rewrite FOREACH with expression - C# Tutorial

From the course: Advanced C#: Functional Programming Patterns

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Rewrite FOREACH with expression

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This is what we're going to attempt to refactor in this example. It's a foreach loop. In fact, there's some nested foreach loops and there's also an if statement in here. So the idea behind this is I want to take a list of numbers, and I want to look through all of those numbers and find numbers that end with some specific digits. In our case, they end with either 14, 23, 37 or 49. So I'm passing, in this example, I'm passing in two lists of ints, all the numbers, and the target numbers I'm looking for. My code starts out by creating a list of int called matching numbers. And then I've got the foreach statement here that's going through all the numbers. And then the next foreach is going through all the target numbers. And then it's doing an if statement here to determine if it meets my target, number % 100 == target. And if that's the case, then we add it to this list. Here's how we would do it with an expression. Now this is all one expression. So we're returning the results of this…

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