title: Lua string concatenation in Json blob
body: <p>I have a question about string concatenation. </p>
  
  <p>I have this example where I am trying to append a value inside a json block with a variable value </p>
  
  <p>example: </p>
  
  <pre><code>clock = os.clock()
  body = "{\"name\":\"stringValue\" .. clock }"
  print(body) 
  </code></pre>
  
  <p>When I run this I get the following output: </p>
  
  <pre><code>{"name":"stringValue" .. clock }
  </code></pre>
  
  <p>What I am expecting is something like </p>
  
  <pre><code>{"name":"stringValue0.010117"}
  </code></pre>
  
  <p>How do I make is so this variables value is added to the string?</p>