How to create a simple app using the MVC approach?

Hello gurus i'm trying to learn the SAPUI5 and i'm trying to create a simple app using the MVC i created the app and trying to add a lable to the view but there is nothing appear when i run it the code for the HTML page
<!DOCTYPE HTML>
<html>
  <head>
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta http-equiv='Content-Type' content='text/html;charset=UTF-8'/>
  <script src="https://sapui5.hana.ondemand.com/resources/sap-ui-core.js"
  id="sap-ui-bootstrap"
  data-sap-ui-libs="sap.m"
  data-sap-ui-theme="sap_bluecrystal">
  </script>
  <!-- only load the mobile lib "sap.m" and the "sap_mvi" theme -->
  <script>
  sap.ui.localResources("mytestapp");
  var view = sap.ui.view({id:"idshell1", viewName:"mytestapp.shell", type:sap.ui.core.mvc.ViewType.JS});
  view.placeAt("content");
  </script>
  </head>
  <body class="sapUiBody" role="application">
  <div id="content"></div>
  </body>
</html>
the code for the view
sap.ui.jsview("mytestapp.shell", {
  /** Specifies the Controller belonging to this View.
  * In the case that it is not implemented, or that "null" is returned, this View does not have a Controller.
  * @memberOf mytestapp.shell
  getControllerName : function() {
  return "mytestapp.shell";
  /** Is initially called once after the Controller has been instantiated. It is the place where the UI is constructed.
  * Since the Controller is given to this method, its event handlers can be attached right away.
  * @memberOf mytestapp.shell
  createContent : function(oController) {
  var oLabel = new sap.ui.commons.Label("l1");
  oLabel.setText("Test label");
  oLabel.placeAt("content");
i dont know what is wrong or if i should use a container to display my controls
any help will be appreciated
thanks in advance

Hi,
Instead of   oLabel.placeAt("content"); use return oLabel;
so it will as below,
createContent : function(oController) {
  var oLabel = new sap.ui.commons.Label("l1");
  oLabel.setText("Test label");
  return oLable;
Regards,
Chandra

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