YAPC::EU 2018 Glasgow Update!

Task/Array-concatenation/8th/array-concatenation.8th

@@ -0,0 +1 @@
+[1,2,3] [4,5,6] a:+ .

Task/Array-concatenation/Elena/array-concatenation.elena

@@ -1,9 +1,9 @@
 import extensions.
 
-public program =
+public program
 [
     var a := (1,2,3).
     var b := (4,5).
 
-    console printLine("(",a,") + (",b,") = (",a + b,")"); readChar.
-].
+    console printLine("(",a,") + (",b,") = (",a + b,")"); readChar
+]

Task/Array-concatenation/Perl-6/array-concatenation.pl6

@@ -1,8 +1,18 @@
-# the prefix:<|> operator (called "slip") can be used to interpolate arrays into a list:
-sub cat-arrays(@a, @b) {
-	|@a, |@b
-}
+my @array1 = 1, 2, 3;
+my @array2 = 4, 5, 6;
 
-my @a1 = (1,2,3);
-my @a2 = (2,3,4);
-cat-arrays(@a1,@a2).join(", ").say;
+# If you want to concatenate two array to form a third,
+# either use the slip operator "|", to flatten each array.
+
+my @array3 = |@array1, |@array2;
+say @array3;
+
+# or just flatten both arrays in one fell swoop
+
+@array3 = flat @array1, @array2;
+say @array3;
+
+# On the other hand, if you just want to add the elements
+# of the second array to the first, use the .append method.
+
+say @array1.append: @array2;