title: how to create components dynamically in qml
body: <p><a href="https://stackoverflow.com/questions/19533565/how-to-dynamically-add-components-in-qml">How to dynamically add components in QML?</a>
  I refered this link to add a component(Rectangle component) into main.qml window upon a button click in same window. 'Ubuntu.Components' is not installed in my qt. I don't know javascript. "componentCreation.js"is refered here. What does it means?
  i am beginner in qml . i need to know is there a way to load qml comonents dynamically by using qml only.</p>