title: How can I loop JsonModel in sapui5?
body: <p>I'm making my first app in sapui5.</p>
  
  <p>I want create a login page with sign up and login. 
  In sing up I want save user name and password in a external <code>JSON</code>. How I can export the <code>JSON Data</code>? </p>
  
  <p>In login I want validate password and username but i don't know how to loop the <code>JsonModel</code>. 
  I try this but of course didn't work.</p>
  
  <pre><code>var acountsJson = sap.ui.getCore().getModel("acountsModel");
  for(var i = 0; i &lt; acountsJson.length; i++) {
      var obj = acountsJson[i];
  
      console.log(acountsJson.id);
  }
  </code></pre>
  
  <p>Can <code>sap.ui.core</code> has multiple Models?</p>