---
id: 5d79253483eada4dd69258eb
title: Part 40
challengeType: 0
isHidden: true
---
## Description
`range` should set `arr` to `[start]` and should then return `arr`.
## Instructions
## Tests
```yml
tests:
- text: See description above for instructions.
testString: assert(code.replace(/\s/g, "").includes("constarr=[start]") && JSON.stringify(range(1)) === "[1]");
```
## Challenge Seed
```html
```
### Before Test
### After Test
```html
```
## Solution