title: How to show the confirmation alert with one button using javascript?
body: <p>In my application, i need to show the message in alert with OK button.</p>
  
  <p>In that button click event, i want to do some functionalities using the javascript.</p>
  
  <p>So, how can i do this in my app?</p>
  
  <p>Please let me know?</p>