Data update

Task/Associative-array-Creation/Pluto/associative-array-creation.pluto

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+-- Create a map of key, value pairs.
+local planets = {
+    Mercury = 1,
+    Venus   = 2,
+    Earth   = 3,
+    Mars    = 4,
+    Jupiter = 5,
+    Saturn  = 6,
+    Uranus  = 7,
+    Neptune = 8,
+    Pluto   = 9
+}
+
+-- Print it
+-- Note that order is not guaranteed.
+for k, v in planets do print(k, v) end
+print()
+
+-- Create a new one by inverting the key, value pairs.
+local planets2 = planets:invert()
+
+-- Print it.
+-- Now treated as an array with indices 1 to 9
+-- which guarantees order.
+for k, v in planets2 do print($"{k} {v}") end