Initial data commit

Task/JSON/Crystal/json-1.crystal

@@ -0,0 +1,14 @@
+require "json_mapping"
+
+class Foo
+  JSON.mapping(
+    num: Int64,
+    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

Task/JSON/Crystal/json-2.crystal

@@ -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