Data update

Task/Associative-array-Iteration/Julia/associative-array-iteration.jl

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+dict = Dict("hello" => 13, "world" => 31, "!" => 71)
+
+# applying a function to key-value pairs:
+foreach(println, dict)
+
+# iterating over key-value pairs:
+for (key, value) in dict
+    println("dict[$key] = $value")
+end
+
+# iterating over keys:
+for key in keys(dict)
+    @show key
+end
+
+# iterating over values:
+for value in values(dict)
+    @show value
+end