Data update

Task/JSON/Crystal/json-2.cr

@@ -0,0 +1,14 @@
+require "json"
+
+class Foo
+  include JSON::Serializable
+
+  property num : Int64
+  property array : Array(String)
+end
+
+def json
+  foo = Foo.from_json(%({"num": 1, "array": ["a", "b"]}))
+  puts("#{foo.num} #{foo.array}")
+  puts(foo.to_json)
+end