title: How to set Ion Slide to only view once by FIRST TIME users?
body: <p>I am currently using ionic 4 and angular 8.</p>
  
  <p>How do I implement by ion slides to be only viewed once by first-time users? I have seen lots of solutions and ways on how to do it on Ionic 1/2 but I see none on ionic 4. Please advise.</p>