Maybe class and optional parameters
25367
Optional delegates in C#
110721
Nullable types and the ternary operator: why is `? 10 : null` forbidden?
139143
How to specify optional arguments that take functional values
17428
Is there a way to override class variables in Java?
18538
Optional parameter in newcommand
36838
Using the compulsory argument for the optional argument?
22122
How do you use the ? : (conditional) operator in JavaScript?
114030
Instantiate a class with or without parentheses?
139324
Why does the default parameterless constructor go away when you create one with parameters
146469
More than one optional argument for newcommand
79272
Optional argument to \item
21566
What is the best way to check the parameters of the method?
124945
Named and optional parameters, and WCF
96225
chaining classes for .hasClass();
87456
How to avoid collision between optional arguments and options
36270
Nullable type issue with ?: Conditional Operator
63438
Can the :not() pseudo-class have multiple arguments?