---
id: 5d79253a8b29d78984369e4b
title: Part 139
challengeType: 0
dashedName: part-139
---
# --description--
The `fill` method takes an argument and replaces all elements of the array with that argument.
Use it on the array in `range` to replace everything with `start`.
# --hints--
See description above for instructions.
```js
assert(
code
.replace(/\s/g, '')
.includes('constrange=(start,end)=>Array(end-start+1).fill(start)')
);
```
# --seed--
## --before-user-code--
```html
Spreadsheet
```
## --after-user-code--
```html
```
## --seed-contents--
```html
```
# --solutions--
```html
```