A few Ruby and Rails-like extension methods for .NET
I always found it odd that when I wanted to know if a value was entered, by the user, I had to ask if it wasn't entered. Not only that, I had to ask if wasn't null and wasn't empty. All I want to know is if the user provided a value! I'm sure there were similar reasons for why Ruby and Ruby on Rails felt then need to include these methods in their frameworks.
This library replicate 4 simple methods with simple abstractions. As such, this library is very small and simple, but, IMO, the value lies in its simplicity.
Determines whether the instance is null.
object value = null;
int? number = null;
Console.WriteLine(value == null); // true
Console.WriteLine(value.IsNull()); // true
Console.WriteLine(number == null); // true
Console.WriteLine(number.IsNull()); // true Determines whether the collection or string is empty. This is equivalent to testing the length of the collection or string for a value of zero.
int[] array = new int[0];
string str = string.Empty;
Console.WriteLine(array.Length == 0); // true
Console.WriteLine(array.IsEmpty()); // true
Console.WriteLine(str.Length == 0); // true
Console.WriteLine(str.IsEmpty()); // true Determines whether the instance is null, empty, whitespace or false.
- On a collection, this is equivalent to
IsEmpty(). - On a string, this is equivalent to
string.IsNullOrWhiteSpace(). - On a bool, this is equivalent to comparing to
false - On any other object, this is equivalent to
IsNull
Determines whether the instance is present. This is the opposite of IsBlank()