---
id: 5d792539de4b9ac14dd40409
title: Part 122
challengeType: 0
dashedName: part-122
---
# --description--
Use the ternary operator in `nodups` to return `a` if `a.includes(x)` and `a.concat(x)` otherwise.
# --hints--
See description above for instructions.
```js
assert(
JSON.stringify(spreadsheetFunctions.nodups([1, 3, 1, 5, 7, 7, 9, 7])) ===
'[1,3,5,7,9]'
);
```
# --seed--
## --before-user-code--
```html
Spreadsheet
```
## --after-user-code--
```html
```
## --seed-contents--
```html
```
# --solutions--
```html
```