Verify if a integer number is even or odd - refactor

computer-science/01-introduction-to-cs-and-programming-mit/src/02-lecture.js

@@ -8,47 +8,49 @@ var prompt = require( 'prompt' );
 // x *= x; // or x = x * x;
 // console.log( x );
 
-// read input data from terminal
-prompt.start();
-prompt.get({
-  name        : 'number',
-  description : 'Enter a number'
-}, function( err, results ) {
-
-  console.log( results.number );
-
-});
-
-// // Verify if a integer number is even or odd.
-// // If odd, verify if the number is divisible by 3
 // // read input data from terminal
-// process.stdin.resume();
+// prompt.start();
+// prompt.get({
+//   name        : 'number',
+//   description : 'Enter a number'
+// }, function( err, results ) {
 
-// console.log( 'Enter a integer:' );
+//   console.log( results.number );
-// process.stdin.setEncoding( 'utf8' );
-
-// process.stdin.on( 'data', function( input ) {
-
-//  var int = parseInt( input, 10 );
-
-//  if ( int % 2 === 0 ) {
-
-//    console.log( 'Even' );
-
-//  } else {
-
-//    console.log( 'Odd' );
-
-//    if ( int % 3 !== 0 ) {
-
-//      console.log( 'And not divisible by 3' );
-
-//    }
-
-//  }
-
-//  process.exit();
 
 // });
 
+// Verify if a integer number is even or odd.
+// If odd, verify if the number is divisible by 3
+// read input data from terminal
+prompt.start();
+
+prompt.get([
+  {
+    name        : 'number',
+    description : 'Enter a integer'
+  }
+], function( err, results ) {
+
+  var int = parseInt( results.number, 10 );
+
+    if ( int % 2 === 0 ) {
+
+      console.log( int + ' is EVEN' );
+
+    } else {
+
+      var msg = int.toString() + ' is ODD';
+
+      if ( int % 3 !== 0 ) {
+
+        msg += ' and NOT divisible by 3';
+
+      }
+
+      console.log( msg );
+
+    }
+
+});
+
 // // Find the lowest of three numbers