Node solution week 95/part 2.

1 files changed, 27 insertions, 0 deletions

diff --git a/challenge-095/abigail/node/ch-2.js b/challenge-095/abigail/node/ch-2.js
new file mode 100644
index 0000000000..57f01e039a
--- /dev/null
+++ b/challenge-095/abigail/node/ch-2.js
@@ -0,0 +1,27 @@
+let stack = [];
+let ERROR = "Stack is empty";
+
+  require      ("fs")
+. readFileSync (0)               // Read all.
+. toString     ()                // Turn it into a string.
+. split        ("\n")            // Split on newlines.
+. filter       (_ => _ . length) // Filter out empty lines.
+
+. map          (command => {
+    //
+    // Parse the input line
+    //
+    let [m, operator, value] = command . match (/^(push|pop|top|min)\s*(.*)$/);
+
+    //
+    // Do the actions
+    //
+    if (operator == "push") {stack . push (+value)}
+    if (operator == "pop")  {stack . pop ()}
+    if (operator == "top")  {
+        console . log (stack . length ? stack [stack . length - 1] : ERROR)
+    }
+    if (operator == "min")  {
+        console . log (stack . length ? Math  . min (... stack)    : ERROR)
+    }
+});