RogerBW solutions for challenge no. 282

2 files changed, 82 insertions, 0 deletions

diff --git a/challenge-282/roger-bell-west/javascript/ch-1.js b/challenge-282/roger-bell-west/javascript/ch-1.js
new file mode 100755
index 0000000000..4c36f7401a
--- /dev/null
+++ b/challenge-282/roger-bell-west/javascript/ch-1.js
@@ -0,0 +1,46 @@
+#! /usr/bin/node
+
+"use strict"
+
+// by VLAZ
+// https://stackoverflow.com/a/59322890
+function toWindows(inputArray, size) {
+  return Array.from(
+    {length: inputArray.length - (size - 1)}, //get the appropriate length
+    (_, index) => inputArray.slice(index, index+size) //create the windows
+  )
+}
+
+function goodinteger(a) {
+    const winsize = 3;
+    const d = a.toString().split("");
+    let ex = -1;
+    toWindows(d, winsize).forEach((cc, offset) => {
+        if (ex == -1 && cc[0] == cc[1] && cc[1] == cc[2]) {
+            if ((offset == 0 || d[offset- 1] != cc[0]) &&
+                (offset == d.size - winsize || d[offset + winsize] != cc[2])) {
+                ex = +cc.join("");
+            }
+        }
+    });
+    return ex;
+}
+
+if (goodinteger(12344456) == 444) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (goodinteger(1233334) == -1) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (goodinteger(10020003) == 0) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write("\n");
diff --git a/challenge-282/roger-bell-west/javascript/ch-2.js b/challenge-282/roger-bell-west/javascript/ch-2.js
new file mode 100755
index 0000000000..04423e8aa1
--- /dev/null
+++ b/challenge-282/roger-bell-west/javascript/ch-2.js
@@ -0,0 +1,36 @@
+#! /usr/bin/node
+
+"use strict"
+
+function changingkeys(a) {
+    let oc = 'x';
+    let out = 0;
+    a.toLowerCase().split("").forEach((c, i) => {
+        if (i == 0) {
+            oc = c;
+        } else if (c != oc) {
+            oc = c;
+            out ++;
+        }
+    });
+    return out;
+}
+
+if (changingkeys('pPeERrLl') == 3) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (changingkeys('rRr') == 0) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write(" ");
+if (changingkeys('GoO') == 1) {
+  process.stdout.write("Pass");
+} else {
+  process.stdout.write("FAIL");
+}
+process.stdout.write("\n");