Lua and Node.js solutions for week 130, part 1

1 files changed, 29 insertions, 0 deletions

diff --git a/challenge-130/abigail/node/ch-1.js b/challenge-130/abigail/node/ch-1.js
new file mode 100644
index 0000000000..4e9353f3af
--- /dev/null
+++ b/challenge-130/abigail/node/ch-1.js
@@ -0,0 +1,29 @@
+#!/usr/local/bin/node
+
+//
+// See ../README.md
+//
+
+//
+// Run as: node ch-1.js < input-file
+//
+
+  require ('readline')
+. createInterface ({input: process . stdin})   
+. on              ('line', line => {
+    let numbers = {}
+    let input = [... line . matchAll (/[1-9][0-9]*/g)] . map (_ => + _ [0])
+    input . forEach (n => {
+        if (!numbers [n]) {
+            numbers [n] = 1
+        }
+        else {
+            numbers [n] ++
+        }
+    })
+    for (let n in numbers) {
+        if (numbers [n] % 2 == 1) {
+            console . log (n)
+        }
+    }
+})