title: adding variable value inside a JSON quote
body: <p>I am trying to create a javascript object,</p>
  
  <pre><code>var systemName = {"system" : varA};
  </code></pre>
  
  <p>But I want the object to be in the form `{"system" :"varA"} </p>
  
  <p>with varA having the variable value but inserted inside double quotes.
  I have tried <code>{"system" : "'+ varA +'"};</code> 
  but that did not do the trick. Can you point out what I am doing wrong here? I know its a simple things. But sometimes these small things get us stuck at certain points</p>