Visual Basic 2015 Unleashed

Concatenation Operators

Sequences (that is, IEnumerable(Of T) objects) expose a method named Concat that enables the creation of a new sequence containing items from two sequences. The following code shows an example in which a new sequence of strings is created from two existing arrays of strings:

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Dim firstSequence = {"One", "Two", "Three"}Dim secondSequence = {"Four", "Five", "Six"}Dim concatSequence = firstSequence.Concat(secondSequence)

The result produced by this code is that the concatSequence variable contains the following items: “One”, “Two”, “Three”, “Four”, “Five”, and “Six”. The first items in the new sequence are taken from the one you invoke the Concat method on. You can also use the null-propagating ...