How to run `ls -l` through Node.js and display its result in console?

Question

How to run`ls -l` through Node.js and display its result in console?
```javascript
const cp = require('child_process');
```

Accepted Answer

```javascript
cp.exec('ls -l', function (err, stdout, stderr) { console.log(stdout); });
```

Accepted Answer

```javascript
cp.spawn('ls', ['-l']).stdout.on('data', function(data) { console.log(data.toString()); });
```

Answer

```javascript
cp.exec('ls', ['-l'], function (err, stdout, stderr) { console.log(stdout); });
```

Answer

```javascript
cp.spawn('ls -l']).stdout.on('data', function(data) { console.log(data.toString()); });
```

Question from the Node.js test