From 120ddabba9a2e7583c5eeb66d4cc4a463f8cedc2 Mon Sep 17 00:00:00 2001
From: Abigail <abigail@abigail.be>
Date: Tue, 4 May 2021 17:18:05 +0200
Subject: Node.js solution for week 111, part 1

---
 challenge-111/abigail/README.md    |  1 +
 challenge-111/abigail/node/ch-1.js | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 challenge-111/abigail/node/ch-1.js

diff --git a/challenge-111/abigail/README.md b/challenge-111/abigail/README.md
index bd9ef31d26..a7ac678775 100644
--- a/challenge-111/abigail/README.md
+++ b/challenge-111/abigail/README.md
@@ -35,6 +35,7 @@ languages, the fact input is sorted does not offer additional benefits.
 * [Bash](bash/ch-1.sh)
 * [C](c/ch-1.c)
 * [Lua](lua/ch-1.lua)
+* [Node.js](node/ch-1.js)
 * [Perl](perl/ch-1.pl)
 
 ### Blog
diff --git a/challenge-111/abigail/node/ch-1.js b/challenge-111/abigail/node/ch-1.js
new file mode 100644
index 0000000000..6e97d03272
--- /dev/null
+++ b/challenge-111/abigail/node/ch-1.js
@@ -0,0 +1,37 @@
+#!/usr/local/bin/node
+
+//
+// See ../README.md
+//
+
+//
+// Run as: node ch-1.js < input-file
+//
+
+let MATRIX_SIZE = 5
+
+//
+// Read in all the numbers, both the matrix and the target numbers
+//
+let numbers = 
+  require      ("fs")
+. readFileSync (0)                     // Read all.
+. toString     ()                      // Turn it into a string.
+. match        (/-?[0-9]+/g)
+
+//
+// Populate the matrix
+//
+let matrix = {}
+for (let i = 0; i < MATRIX_SIZE * MATRIX_SIZE; i ++) {
+    matrix [numbers [i]] = 1
+}
+
+//
+// Check the rest of the numbers whether they're present
+// in the matrix.
+//
+for (let j = MATRIX_SIZE * MATRIX_SIZE; j < numbers . length; j ++) {
+    console . log (matrix [numbers [j]] ? 1 : 0)
+}
+
-- 
cgit