Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Concatenations are supported for values of type String and arrays. In both cases, they're expressed via the operator +. For instance, "Hello " + "world!" evaluates to "Hello world!", and [1, 2, 3] + [4, 5, 6] evaluates to [1, 2, 3, 4, 5, 6].
Concatenating two arrays requires that both arrays be of the same type. This requirement differs from constructing an array literal where the compiler determines a common base type for all array items. This difference is because arrays are treated as invariant. The type of the entire expression matches the type of the operands.