Angular js works on jsfiddle but not on my machine Strange ERROR

i am a beginner when it comes to angular

so here is the fiddle http://jsfiddle.net/prantikv/knc6vrd9/1/

i have an simple app and as you can see i am just trying out the basics.

The example works fine on jsfiddle but when i run it on my machine i get a huge piece of error staring like this

Error: [ng:areq] Argument 'SimpleCont' is not a function, got undefined

And the ng-repeat doesnt show any output and the text input also doesnt work as well i have run the page via a local wamp server as well and get the same result

Ommit creating a function, since angularjs is modular and provides you mechanism to create controllers, which can be used in applications. So in your code, instead of: 

function SimpleCont($scope){
    $scope.nameList=[
                        {firstname:'john'},
                        {firstname:'jane'}
                    ];
}

Create module and controller within it. First use module method from angular, which takes as first parameter name of module ( later to include in ng-app ) and as a second parameter dependency list, which in this situation is empty. 

angular.module('myApp', []).

Then invoke controller function on module. Module method always return itself, so you can add later another contorllers by using dot ..

 controller('SimpleCont', function(){
    this.nameList=[
                                {firstname:'john'},
                                {firstname:'jane'}
                            ];
    });

This is code instead of function, this code sets module and assign controller to it. In your application to use module and created controller within it, set ng-app properly. instead of: 

<div ng-app>

use: 

<div ng-app="myApp">

Generally good to know how to create controllers and modules in angularjs for beggining, because later you can learn other curious things like services, factories and also get to know what is $http service and how to use it for making ajax calls. Also good to automate work thanks to grunt, karma and yeoman.

Here is good tutorial to start.

Here is about yeoman a tool you can use to work with angular.