title: When to use return, and what happens to returned data?
body: <p>What is the difference between:</p>
  
  <pre><code>function bla1(x){console.log(x)}
  </code></pre>
  
  <p>and</p>
  
  <pre><code>function bla(x){return console.log(x)}
  </code></pre>
  
  <p>In which cases should I use <code>return</code>?</p>
  
  <p>also, when a value is returned from a function, what happens to it? is it stored somewhere?</p>