Instantiate an empty string[] as a parameter to make it optional [duplicate]

Question

I have something super similar to:

private void Method(string[] Parameters= {}) { // execute code here }

The issue I run into here is an error stating:

invalid expression term '{'

so if I remove the '= {}' I no longer have an optional string[] as a parameter. I need to have a string[] as an optional parameter.

Let me know if I need to clarify anything.

@whoever closed my question, that one you marked as duplicate was before 4.0 was released. Im certain there is an implementation of something better in 4.0. — LOGANr18
– LOGANr18, Commented Feb 13, 2019 at 16:05
Dear LOGAN. I was the one that initially tried to answer your question and after better search marked it as duplicate. From my narrow knowledge I believe this holds for new versions of .NET. In any case if you are certain there exists a better implementation why not try to search before asking? — apomene
– apomene, Commented Feb 13, 2019 at 16:12
@LOGANr18 If you, or anyone else, comes up with a better solution to the problem than what's already on the existing question, you/they are free to post a new answer with a different solution. — Servy
– Servy, Commented Feb 13, 2019 at 16:13

Murray Foxcroft · Accepted Answer · 2019-02-13 15:45:36Z

You need to supply null as the default value for an optional string array.

 private void Method(string[] Parameters = null) { if (Parameters == null) { // optional parameter not passed in } else { // do work with the parameter } }

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