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Merge pull request #1466 from csuich2/csharp-null-propagation

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Added info C# null-propagation
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Levi Bostian
2015-10-12 23:19:24 -05:00
parent f3b1fb73ef 5bbd8419b2
commit c15be9b013
1 changed files with 3 additions and 0 deletions
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@@ -444,6 +444,9 @@ on a new line! ""Wow!"", the masses cried";
// in case variable is null // in case variable is null
int notNullable = nullable ?? 0; // 0 int notNullable = nullable ?? 0; // 0
// ?. is an operator for null-propogation - a shorthand way of checking for null
nullable?.Print(); // Use the Print() extension method if nullable isn't null
// IMPLICITLY TYPED VARIABLES - you can let the compiler work out what the type is: // IMPLICITLY TYPED VARIABLES - you can let the compiler work out what the type is:
var magic = "magic is a string, at compile time, so you still get type safety"; var magic = "magic is a string, at compile time, so you still get type safety";
// magic = 9; will not work as magic is a string, not an int // magic = 9; will not work as magic is a string, not an int