September 2017 Update

Task/Integer-comparison/Jq/integer-comparison-1.jq

@@ -0,0 +1,16 @@
+# compare/0 compares the first two items if they are numbers,
+# otherwise an "uncomparable" message is emitted.
+
+def compare:
+  def english:
+    if .[0] < .[1] then "less than"
+    elif .[0] == .[1] then "equal to"
+    else "greater than"
+    end;
+  if (.[0]|type) == "number" and (.[1]|type) == "number" then
+        "\(.[0]) is \(english) \(.[1])"
+  else
+       "\(.[0]) is uncomparable to \(.[1])"
+  end ;
+
+compare

Task/Integer-comparison/Jq/integer-comparison-2.jq

@@ -0,0 +1,7 @@
+$ jq -s -r -f Integer_comparison.jq
+1 2
+1 is less than 2
+
+$ jq -s -r -f Integer_comparison.jq
+1 "a"
+1 is uncomparable to a