es6 harmony arrow functions in express handlers
<p>Is there a reason not to use arrows instead of regular function expressions in expressjs for handlers in middleware?</p>

<pre><code>app.use(mountSomething())
router.use(mountSomethingElse())

app.get('/', (req,res,next)=&gt; { 
    next();
})

route.get('/path', (req,res,next)=&gt;{
    res.send('send')
})
</code></pre>