var.as

Convert the stored value to type T.

Conversion rules:

• If the current type is Type.NULL, this returns T.init.
• Scalars and strings convert via std.conv.to.
• If the current type is Type.ARRAY and T is var[], a copy of the underlying array is returned. If T is string, this returns the textual representation from toString().
• If the current type is Type.OBJECT (map) and T is var[string], a copy of the underlying map is returned. If T is string, this returns the textual representation from toString().
• For other combinations, behavior is currently T.init.