enumeration

about_enumeration.go

@@ -0,0 +1,28 @@
+package go_koans
+
+func testEnumeration() {
+  {
+    var concatenated string
+    var total int
+
+    strings := []string{"hello", " world", "!"}
+    for i, v := range strings {
+      total += i
+      concatenated += v
+    }
+
+    assert(concatenated == __string__) // for loops have a modern variation
+    assert(total == __int__) // which offers both a value and an index
+  }
+
+  {
+    var totalLength int
+
+    strings := []string{"hello", " world", "!"}
+    for _, v := range strings {
+      totalLength += len(v)
+    }
+
+    assert(totalLength == __int__) // although we may omit either value
+  }
+}