ko.plus: Replaced Callback type with Function

ko.plus/ko.plus-tests.ts

@@ -43,6 +43,8 @@ function CommandTests() {
         action: () => { return "Hello cmd4"; }
     });
 
+    // initialize command with action with typed argument
+    var cmd5 = ko.command((message: string) => { return message; });
 
     // test execute the command
     cmd1();

ko.plus/ko.plus.d.ts

@@ -23,7 +23,7 @@
 //
 interface KnockoutStatic {
     // create a command - two overloads
-    command: (param: KoPlus.Callback | KoPlus.CommandOptions) => KoPlus.Command;
+    command: (param: Function | KoPlus.CommandOptions) => KoPlus.Command;
 
     editable: KoPlus.EditableStatic;
     editableArray: KoPlus.EditableArrayStatic;
@@ -60,8 +60,6 @@ interface KnockoutBindingHandlers {
 // namespace for ko.plus types
 //
 declare module KoPlus {
-    // predefine a callback type
-    export type Callback = () => void;
 
     //#region Command types
 
@@ -91,9 +89,9 @@ declare module KoPlus {
 
         fail: (callback: (error: string) => void) => Command;
 
-        always: (callback: Callback) => Command;
+        always: (callback: Function) => Command;
 
-        then: (resolve: Callback, reject: Callback) => Command;
+        then: (resolve: Function, reject: Function) => Command;
     }
 
     //
@@ -102,7 +100,7 @@ declare module KoPlus {
     //
     export interface CommandOptions {
         // [required] sets the command action method
-        action: Callback;
+        action: Function;
 
         // [optional] function to determine if command can be executed
         canExecute?: () => boolean;