Question

What does this mean??

var cdParams = (includeUniversals) 
? new[] {pageDictionary[pageName], pageDictionary[CNNService.UniversalPage.Name]}
: new[] {pageDictionary[pageName]};

Basically it boils down to what does ? mean and what does new[] mean?

Answer 1

var cdParams // type inferred by the compiler
 = (includeUniversals) ? // if includeUniversals is true

// then cdParams = new a new array with 2 values coming from a dictionary
 new[] { pageDictionary[pageName], pageDictionary[CNNService.UniversalPage.Name] }

// otherwise, cdParams = a new array with one value
: new[] { pageDictionary[pageName] };

See ternary operator and implicit array typing.