C# Language
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C# Language Lambda expressions Lambdas can be emitted both as `Func` and `Expression`
Example
Assuming the following Person class:
public class Person
{
public string Name { get; set; }
public int Age { get; set; }
}
The following lambda:
p => p.Age > 18
Can be passed as an argument to both methods:
public void AsFunc(Func<Person, bool> func)
public void AsExpression(Expression<Func<Person, bool>> expr)
Because the compiler is capable of transforming lambdas both to delegates and Expressions.
Obviously, LINQ providers rely heavily on Expressions (exposed mainly through the IQueryable<T> interface) in order to be able to parse queries and translate them to store queries.
