From db05bd869a464e6656e759c6f422717175eebcc8 Mon Sep 17 00:00:00 2001
From: Abigail <abigail@abigail.be>
Date: Thu, 1 Apr 2021 18:00:02 +0200
Subject: Node.js solution for week 106, part 2

---
 challenge-106/abigail/README.md    |  1 +
 challenge-106/abigail/node/ch-2.js | 40 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 challenge-106/abigail/node/ch-2.js

diff --git a/challenge-106/abigail/README.md b/challenge-106/abigail/README.md
index e3278d4b6d..8caecfeacd 100644
--- a/challenge-106/abigail/README.md
+++ b/challenge-106/abigail/README.md
@@ -96,6 +96,7 @@ Wikipedia](https://en.wikipedia.org/wiki/Repeating_decimal).
 * [Bash](bash/ch-2.sh)
 * [C](c/ch-2.c)
 * [Lua](lua/ch-2.lua)
+* [Node.js](node/ch-2.js)
 * [Perl](perl/ch-2.pl)
 
 ### Blog
diff --git a/challenge-106/abigail/node/ch-2.js b/challenge-106/abigail/node/ch-2.js
new file mode 100644
index 0000000000..166a3e050e
--- /dev/null
+++ b/challenge-106/abigail/node/ch-2.js
@@ -0,0 +1,40 @@
+#!/usr/local/bin/node
+
+//
+// See ../README.md
+//
+
+//
+// Run as: node ch-2.js < input-file
+//
+
+require ('readline')
+. createInterface ({input: process . stdin})   
+. on ('line', _ => console . log (long_division (... _ . split (" ")
+                                                       . map (_ => +_))))
+
+//
+// See ../README.md for info about this function
+//
+
+function long_division (numerator, denominator) {
+    let BASE = 10
+    let fraction = Math . floor (numerator / denominator) + "."
+    let position = fraction . length
+    let seen     = []
+
+    numerator %= denominator
+
+    while (!(numerator in seen)) {
+        if (!numerator) {
+            return (fraction)
+        }
+        seen [numerator] = position
+        fraction += Math . floor (BASE * numerator / denominator)
+        numerator =               BASE * numerator % denominator
+        position ++
+    }
+
+    return (fraction . substr (0, seen [numerator]) + "(" +
+            fraction . substr (   seen [numerator]) + ")")
+}
-- 
cgit