1 files changed, 31 insertions, 3 deletions
diff --git a/src/apis.js b/src/apis.js
index 11fa9838..1e1bcae1 100644
--- a/src/apis.js
+++ b/src/apis.js
@@ -807,6 +807,16 @@ var angularFunction = {
   }
 };
 
+/**
+ * Computes a hash of an 'obj'.
+ * Hash of a:
+ *  string is string
+ *  number is number as string
+ *  object is either call $hashKey function on object or assign unique hashKey id.
+ * 
+ * @param obj
+ * @returns {String} hash string such that the same input will have the same hash string
+ */
 function hashKey(obj) {
   var objType = typeof obj;
   var key = obj;
@@ -821,17 +831,37 @@ function hashKey(obj) {
   return objType + ':' + key;
 }
 
+/**
+ * HashMap which can use objects as keys
+ */
 function HashMap(){}
 HashMap.prototype = {
+  /**
+   * Store key value pair
+   * @param key key to store can be any type
+   * @param value value to store can be any type
+   * @returns old value if any
+   */
   put: function(key, value) {
     var _key = hashKey(key);
     var oldValue = this[_key];
     this[_key] = value;
     return oldValue;
   },
+  
+  /**
+   * @param key
+   * @returns the value for the key
+   */
   get: function(key) {
     return this[hashKey(key)];
   },
+  
+  /**
+   * Remove the key/value pair
+   * @param key
+   * @returns value associated with key before it was removed
+   */
   remove: function(key) {
     var _key = hashKey(key);
     var value = this[_key];
@@ -852,8 +882,6 @@ defineApi('Array', [angularGlobal, angularCollection, angularArray]);
 defineApi('Object', [angularGlobal, angularCollection, angularObject]);
 defineApi('String', [angularGlobal, angularString]);
 defineApi('Date', [angularGlobal, angularDate]);
-// TODO: enable and document this API
-//defineApi('HashMap', [HashMap]);
 //IE bug
-angular['Date']['toString'] = angularDate['toString'];
+angular.Date.toString = angularDate.toString;
 defineApi('Function', [angularGlobal, angularCollection, angularFunction]);