---
id: 5d792536dd8a4daf255488ac
title: Part 070
challengeType: 0
isBeta: true
---
## Description
Replace the `""` in `varRangeExpanded` with a function, which takes `match`, `c1`, `n1`, `c2` and `n2` as arguments, and returns `n1`.
## Instructions
## Tests
```yml
tests:
- text: See description above for instructions.
testString: assert(code.replace(/\s/g, "").includes('constvarRangeExpanded=x.replace(rangeRegex,(match,c1,n1,c2,n2)=>n1)'));
```
## Challenge Seed
```html
```
### Before Test
### After Test
```html
```
## Solution