title: using console.log as a promise callback
body: <p>I found it bit strange that, resolving a promise like this</p>
  
  <pre><code>.then(console.log, console.log)
  </code></pre>
  
  <p>doesn't work, but this works</p>
  
  <pre><code> .then(d =&gt; {
       console.log(d);
     }, err =&gt; {
       console.log(err);
     });
  </code></pre>
  
  <p>what am I missing</p>