--- id: 5d792535a40ea5ac549d6804 title: Part 051 challengeType: 0 isBeta: true --- ## Description
Chain `map` onto `range(start.charCodeAt(0), end.charCodeAt(0))`, with `x => x` as the argument.
## Instructions
## Tests
```yml tests: - text: See description above for instructions. testString: assert(code.replace(/\s/g, "").includes("range(start.charCodeAt(0),end.charCodeAt(0)).map(x=>x)")); ```
## Challenge Seed
```html ```
### Before Test
```html Spreadsheet
```
### After Test
```html ```
## Solution
```html ```