Merge pull request #195 from arlando/feature-when-example

Added an example using when.

examples/when.js

@@ -0,0 +1,46 @@
+/**
+ * When example
+ */
+
+"use strict";
+var inquirer = require("../lib/inquirer");
+
+var questions = [
+  {
+    type: "confirm",
+    name: "bacon",
+    message: "Do you like bacon?"
+  },
+  {
+    type: "input",
+    name: "favorite",
+    message: "Bacon lover, what is your favorite type of bacon?",
+    when: function ( answers ) {
+      return answers.bacon;
+    }
+  },
+  {
+    type: "confirm",
+    name: "pizza",
+    message: "Ok... Do you like pizza?",
+    when: function (answers) {
+      return !likesFood( "bacon" )(answers);
+    }
+  },
+  {
+    type: "input",
+    name: "favorite",
+    message: "Whew! What is your favorite type of pizza?",
+    when: likesFood( "pizza" )
+  }
+];
+
+function likesFood ( aFood ) {
+  return function ( answers ) {
+    return answers[ aFood ];
+  }
+}
+
+inquirer.prompt(questions, function (answers) {
+  console.log( JSON.stringify(answers, null, "  ") );
+});