title: Number keeps on generating ionic 3
body: <p>My intention is to produce only one random number but it keeps on jumping different random number even without even refreshing my page.</p>
  
  <p>Here are my codes:</p>
  
  <p><strong>random.ts</strong></p>
  
  <pre><code>get random(){
  
  var rand = Math.floor(Math.random()*20)+1;
  
  return rand;       
  }
  </code></pre>
  
  <p><strong>random.html</strong></p>
  
  <pre><code>ion-card-content class="random"&gt; {{random}} /ion-card-content&gt; 
  </code></pre>
  
  <p>Is there any way to just produce on random number? </p>