# Rename Columns

Using the `displayNames` option you can rename the colums. The object's keys are the existing column names and the values are the new ones.

```javascript
import { Table } from 'voici.js'

const data = [
  { firstname: 'Homer', lastname: 'Simpson', age: 39 },
  { firstname: 'Marge', lastname: 'Simpson', age: 36 },
  { firstname: 'Bart', lastname: 'Simpson', age: 10 },
  { firstname: 'Lisa', lastname: 'Simpson', age: 8 },
  { firstname: 'Maggie', lastname: 'Simpson', age: 1 }
];

const config = {
  header: {
    displayNames: {
      firstname: 'fName',
      lastname: 'lName'
    }
  }
};

const table = new Table(data, config);
table.printPlain();
```

Output:

```
  fName     lName      age  
============================
  Homer     Simpson    39   
  Marge     Simpson    36   
  Bart      Simpson    10   
  Lisa      Simpson    8    
  Maggie    Simpson    1    
```