Update 'index.js'

index.js

@@ -23,7 +23,7 @@
     return shuffle(numbers);
   }
 
-  function random() {
+  function populate() {
     if (!adjectives.length) {
       adjectives = shuffle(lists.adjectives.slice(0));
     }
@@ -33,13 +33,32 @@
     if (!numbers.length) {
       numbers = shuffle(genNumbers());
     }
+  }
 
+  function random() {
+    populate();
     return adjectives.pop()
       + '-' + animals.pop()
       + '-' + numbers.pop()
       ;
   }
 
+  // Accepts a format as a stirng of 'a' for adjective, 'n' for noun, and '#' for number
+  function get(format) {
+    populate();
+    hri = new Array();
+    for (var i = 0; i < format.length; i++) {
+      switch (format[i]) {
+        case 'a': hri.push(adjectives.pop()); break;
+        case 'n': hri.push(animals.pop()); break;
+        case '#': hri.push(adjectives.pop()); break;
+        default:
+          throw 'Unexpected value ' + format[i] + '. Expected a,n,#';
+      }
+
+    return hri.join('-');
+  }
+
   exports.humanReadableIds = { random: random };
   exports.hri = exports.humanReadableIds;