---
id: 5d7925399afb905c34730a75
title: Part 129
challengeType: 0
dashedName: part-129
---
# --description--
But our function takes an array of numbers, not strings. Luckily, you can pass a function `fn` as argument to sort:
```js
[2, 9, 10, 15].sort((a, b) => b - a); // [10, 9, 5, 2]
```
If `b - a` is less than 0, then `a` will be placed before `b`. As a result, this sorts the array in descending order.
Use `sort` to sort `nums` in ascending order.
# --hints--
See description above for instructions.
```js
assert(
/constmedian=nums=>\{constsorted=nums\.sort\(\((.+),(.+)\)=>\1-\2\)/.test(
code.replace(/\s/g, '')
)
);
```
# --seed--
## --before-user-code--
```html
Spreadsheet
```
## --after-user-code--
```html
```
## --seed-contents--
```html
```
# --solutions--
```html
```