Null propagation in C# 6.0

Today I read ( http://www.volatileread.com/Wiki?id=2104 ) about the null propagation Operator ?. ... a C# 6.0 feature what enables you the possibility to make things like

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string invalidResult = string.Empty; if(this.CurrentUser != null) { if(this.CurrentUser.Name != null) { return this.CurrentUser.Name; } else { return invalidResult; } } else { return invalidResult; }

in only one simple statement:

1	return this.CurrentUser?.Name ?? string.Empty;

... semantically "?." means "if not null evaluate property, else return null". 


cool stuff...

kind regards,

Daniel