Add all the A tasks

Task/Associative-array-Creation/JavaScript/associative-array-creation-1.js

@@ -0,0 +1,14 @@
+var assoc = {};
+assoc['foo'] = 'bar';
+assoc['another-key'] = 3;
+assoc.thirdKey = 'we can also do this!'; // dot notation can be used if the property name
+                                         // is a valid identifier
+assoc[2] = 'the index here is the string "2"';
+assoc[null] = 'this also works';
+assoc[(function(){return 'expr';})()] = 'Can use expressions too';
+
+for (var key in assoc) {
+  if (assoc.hasOwnProperty(key)) {
+    alert('key:"' + key + '", value:"' + assoc[key] + '"');
+  }
+}

Task/Associative-array-Creation/JavaScript/associative-array-creation-2.js

@@ -0,0 +1,4 @@
+var assoc = {
+  foo: 'bar',
+  'another-key': 3 //the key can either be enclosed by quotes or not
+};

Task/Associative-array-Creation/JavaScript/associative-array-creation-3.js

@@ -0,0 +1 @@
+'foo' in assoc // true