node loop files and push to array to display on screen with nunjucks

1<!-- Nunjucks to loop the array and show each file in a list -->
2<ul>
3  {% for file in fileList %}
4  	<li>{{ file }}</li>
5  {% endfor %}
6</ul>

1const directoryPath = './path/to/dir/';
2
3// loop files in directory and push to an array and pass to rendered screen
4router.get('/slug', (req, res) => {
5    let fileList = [];
6    fs.readdir(directoryPath, (err, file) => {
7        if (err) {
8            return console.log('Unable to scan directory: ' + err);
9        } 
10        file.forEach((file) => {
11            fileList.push(file);
12        });
13      	// Passing the array to the rendered screen
14        res.render('rendered/screen', {fileList});
15    });
16});