Merge pull request #4140 from stuart-little/stuart-little_114_node

1st commit on 114_node

2 files changed, 31 insertions, 0 deletions

diff --git a/challenge-114/stuart-little/node/ch-1.js b/challenge-114/stuart-little/node/ch-1.js
new file mode 100755
index 0000000000..021d79e561
--- /dev/null
+++ b/challenge-114/stuart-little/node/ch-1.js
@@ -0,0 +1,22 @@
+#!/usr/bin/env node
+
+// run <script> <number>
+
+const nrDig = process.argv[2].length;
+
+if (process.argv[2] === '9'.repeat(nrDig)) {
+    console.log(parseInt(process.argv[2])+2);
+    process.exit();
+}
+
+function doubleUp(nrDig, initHalf) {
+    return initHalf + ((nrDig % 2) ? (initHalf.substring(0,initHalf.length-1).split('').reverse().join('')) : (initHalf.split('').reverse().join('')))
+}
+    
+const initHalf = process.argv[2].substring(0,Math.floor((nrDig+1)/2));
+
+console.log(
+    (parseInt(doubleUp(nrDig,initHalf)) > parseInt(process.argv[2])) ?
+	(doubleUp(nrDig,initHalf)) :
+	(doubleUp(nrDig,(parseInt(initHalf)+1).toString()))
+)
diff --git a/challenge-114/stuart-little/node/ch-2.js b/challenge-114/stuart-little/node/ch-2.js
new file mode 100755
index 0000000000..dda39b3868
--- /dev/null
+++ b/challenge-114/stuart-little/node/ch-2.js
@@ -0,0 +1,9 @@
+#!/usr/bin/env node
+
+// run <script> <number>
+
+const binNr = '0'+parseInt(process.argv[2]).toString(2);
+console.log(`Initial number in base two: ${binNr}`);
+const nxt = (process.argv[2] % 2) ? (binNr.replace(/01(1*)$/, '10$1')) : (binNr.replace(/01(1*)(0*)$/, '10$2$1'));
+console.log(`Next number in base two: ${nxt}`);
+console.log(`Next number in base ten: ${parseInt(nxt,2)}`)