Initial data commit

Task/Partial-function-application/Wren/partial-function-application.wren

@@ -0,0 +1,14 @@
+var fs = Fn.new { |f, s| s.map { |e| f.call(e) }.toList }
+var f1 = Fn.new { |n| 2 * n }
+var f2 = Fn.new { |n| n * n }
+
+var partial = Fn.new { |f, g| Fn.new { |x| f.call(g, x) } }
+
+var ss = [[0, 1, 2, 3], [2, 4, 6, 8]]
+for (s in ss) {
+    var fsf1 = partial.call(fs, f1)
+    var fsf2 = partial.call(fs, f2)
+    System.print(fsf1.call(s))
+    System.print(fsf2.call(s))
+    System.print()
+}