---
id: 5d79253949802f8587c8bbd3
title: Part 118
challengeType: 0
dashedName: part-118
---
# --description--
The `filter` method keeps only the elements of an array that satisfy the function passed to it:
```js
[1, 10, 8, 3, 4, 5].filter(x > 3); // [10, 8, 4, 5]
```
Use `filter` to add a function called `even` to `spreadsheetFunctions`, which returns all the even elements of an array, `nums`.
# --hints--
See description above for instructions.
```js
assert(
JSON.stringify(spreadsheetFunctions.even([2, 3, 5, 6, 9, 4])) === '[2,6,4]' &&
code.includes('filter')
);
```
# --seed--
## --before-user-code--
```html
Spreadsheet
```
## --after-user-code--
```html
```
## --seed-contents--
```html
```
# --solutions--
```html
```