diff --git a/knockout/tests/knockout-tests.ts b/knockout/tests/knockout-tests.ts
index fb3955241..8432089d9 100644
--- a/knockout/tests/knockout-tests.ts
+++ b/knockout/tests/knockout-tests.ts
@@ -56,13 +56,13 @@ function test_computed() {
     function MyViewModel1() {
         this.price = ko.observable(25.99);
 
-        this.formattedPrice = ko.computed({
+        this.formattedPrice = ko.computed<string>({
             read: function () {
                 return '$' + this.price().toFixed(2);
             },
             write: function (value) {
-                value = parseFloat(value.replace(/[^\.\d]/g, ""));
-                this.price(isNaN(value) ? 0 : value);
+                var num = parseFloat(value.replace(/[^\.\d]/g, ""));
+                this.price(isNaN(num) ? 0 : num);
             },
             owner: this
         });
@@ -124,7 +124,7 @@ function test_observableArrays() {
     myObservableArray.unshift('Some new value');
     myObservableArray.shift();
     myObservableArray.reverse();
-    myObservableArray.sort(function (left, right) { return left.lastName == right.lastName ? 0 : (left.lastName < right.lastName ? -1 : 1) });
+    myObservableArray.sort(function (left, right) { return left == right ? 0 : (left < right ? -1 : 1) });
     myObservableArray.splice(1, 3);
 
     myObservableArray.remove('Blah');
@@ -180,8 +180,6 @@ function test_bindings() {
         init: function (element, valueAccessor) {
             var value = ko.utils.unwrapObservable(valueAccessor());
             $(element).toggle(value);
-        },
-        update: function (element, valueAccessor, allBindingsAccessor) {
         }
     };
     ko.bindingHandlers.hasFocus = {