should i use `return` in Promise? : <pre><code>function saveToTheDb(value) {  
  return new Promise(function(resolve, reject) {
    db.values.insert(value, function(err, user) { // remember error first ;)
      if (err) {
        return reject(err); // don't forget to return here
      }
      resolve(user);
    })
  }
}
</code></pre>

<p>Here is the code which i see from <a href="https://blog.risingstack.com/asynchronous-javascript/" rel="noreferrer">here</a>.
i am confused about <code>return</code> keyword.</p>

<p>For <code>resolve(user);</code>, do i need <code>return</code>?</p>

<p>For <code>reject(user);</code>,  do i need <code>return</code>?</p>
