I thought this would be easy, considering I couldn't even provide a boolean it should be a surprise. D is understandably a different story. D provides array and associative arrays. These are generally sufficient and reaching for a container library isn't necessary.

Arrays utilize [] to denote the type and create literals.

string[] arrayVarName;
arrayVarName = ["array literal value"];

Unlike every other language, D does not use addition to indicate concatenation.

arrayVarName ~= "additional value";

This is often referred to as the append operator because arrays have reserved space where this might not cause an allocation.

This also works with array.

arrayVarName ~= ["more", "values"];

Two lists can be combined with concatenation.

arrayVarName = ["value"] ~ ["more", "values"];

And since D has operator overloading, user types these can have appropriately defined behavior on class or struct. Again this uses D powerful templates and is beyond this tutorial.

https://stackoverflow.com/questions/7826891/elegant-operator-overloading-in-d