---
id: 5d792538631844ad0bdfb4c3
title: Part 114
challengeType: 0
isHidden: true
---
## Description
`evalFormula` is now pure, as it now has no external dependencies, and as before, performs no side effects.
Now define a new function, `increment` inside `spreadsheetFunctions`, which takes `nums` as argument and uses `map` to increment each value of `nums` by 1.
## Instructions
## Tests
```yml
tests:
- text: See description above for instructions.
testString: assert(JSON.stringify(spreadsheetFunctions.increment([1, 5, 3])) === "[2,6,4]");
```
## Challenge Seed
```html
```
### Before Test
### After Test
```html
```
## Solution