[idea] Fluent Is-Style API Design

[szabototo89]

I should implement Helpers method as fluent style:

bool isUpperCase = "Hello World".Is.UpperCase;
bool isBlank = "Hello".Is.Blank;
bool isNotNull = "Hi".Is.Not.Null;

public class Utility<T> {
   public String Value { get; protected set; }
   public Utility(T value) { Value = value; }
}

public class StringUtility : Utility<String> { }

public static class StringHelper {
   public static StringUtility<String> Is(this String that) {
      return new StringUtility(that);
   }
}

Advantages:

• Easy to extend with new functionality
• Easy to read, maintain and refactor