--- id: 5d792535e3304f15a8890162 title: Part 50 challengeType: 0 isHidden: true --- ## Description
Use the `charCodeAt(0)` method on `start` and `end` in `charRange`, like this: `start.charCodeAt(0)`.
## Instructions
## Tests
```yml tests: - text: See description above for instructions. testString: assert(JSON.stringify(charRange("A", "C")) === "[65,66,67]"); ```
## Challenge Seed
```html ```
### Before Test
```html Spreadsheet
```
### After Test
```html ```
## Solution
```html ```