static void LambdaExpressions()
{
var lambdaExamples = new LambdaExamples();
var books = new LambdaExpressions.Book();
var bookRepository = new LambdaExpressions.BookRepository().GetBooks();
var cheapBooks = bookRepository.FindAll(books.IsCheaperThanTenDollars);
foreach (var book in cheapBooks)
{
Console.WriteLine(book.Title);
}
// This Lambda Expression is exactly the same as the above code
var cheapBooksLambda = bookRepository.FindAll(book => book.Price < 10);
foreach (var book in cheapBooksLambda)
{
Console.WriteLine(book.Title);
}
}
//static int Square(int number)
//{
// return number * number;
//}
//predicate method
static bool IsCheaperThan10Dollars(Book book)
{
return book.Price < 10;
}
//predicate condition:
static bool IsCheaperThan50Dollar(Book book)
{
return(book.Price < 50);
}