Using the compulsory argument for the optional argument?
118548
How can I use one argument as the default value for another?
36698
How to set optional parameter to default without passing it?
79272
Optional argument to \item
25367
Optional delegates in C#
43669
Can I make a default for an optional argument the value of another argument?
419
Is “either” only used with two options?
123993
Can I turn a collection of optional parameters into a macro?
118234
How to Combine Pattern Constraints and Default Values for Function Arguments?
22698
Wondering if the use of "either ...nor " is correct
93409
Any way to specify optional parameter values in PHP?
15211
requireJS optional dependency
134416
have to / must / should / ought as applied to inanimate objects
85865
Optional Methods in Java Interface
87456
How to avoid collision between optional arguments and options
101252
Creating a default preamble
68602
A case of optional “that”: “check the” vs. “check that the”
1625
LaTeX: optional arguments with square brackets