---
id: 642dccb78549c9285835ebc2
title: Step 2
challengeType: 0
dashedName: step-2
---
# --description--
Functions are ideal for reusable logic. When a function itself needs to reuse logic, you can declare a nested function to handle that logic. Here is an example of a nested function:
```js
const outer = () => {
const inner = () => {
};
};
```
Declare a nested `createLabel` function using arrow syntax. It should take a `name` parameter.
# --hints--
You should declare a `createLabel` variable in your `onload` function.
```js
assert.match(code, /window\.onload\s*=\s*\(\s*\)\s*=>\s*\{\s*(?:const\s+container\s*=\s*document\.getElementById\(\s*('|"|`)container\1\s*\)\s*;?)?\s*(?:let|var|const)\s+createLabel/);
```
Your `createLabel` variable should be declared after your `container` variable.
```js
assert.match(code, /window\.onload\s*=\s*\(\s*\)\s*=>\s*\{\s*const\s+container\s*=\s*document\.getElementById\(\s*('|"|`)container\1\s*\)\s*;?\s*(?:let|var|const)\s+createLabel/);
```
Your `createLabel` variable should be declared with `const`.
```js
assert.match(code, /window\.onload\s*=\s*\(\s*\)\s*=>\s*\{\s*const\s+container\s*=\s*document\.getElementById\(\s*('|"|`)container\1\s*\)\s*;?\s*const\s+createLabel/);
```
Your `createLabel` variable should be an arrow function.
```js
assert.match(code, /window\.onload\s*=\s*\(\s*\)\s*=>\s*\{\s*const\s+container\s*=\s*document\.getElementById\(\s*('|"|`)container\1\s*\)\s*;?\s*const\s+createLabel\s*=\s*(\(.*\)|[^\s()]+)\s*=>/);
```
Your `createLabel` function should have a `name` parameter.
```js
assert.match(code, /window\.onload\s*=\s*\(\s*\)\s*=>\s*\{\s*const\s+container\s*=\s*document\.getElementById\(\s*('|"|`)container\1\s*\)\s*;?\s*const\s+createLabel\s*=\s*(\(\s*name\s*\)|name)\s*=>/);
```
Your `createLabel` function should be empty.
```js
assert.match(code, /window\.onload\s*=\s*\(\s*\)\s*=>\s*\{\s*const\s+container\s*=\s*document\.getElementById\(\s*('|"|`)container\1\s*\)\s*;?\s*const\s+createLabel\s*=\s*(\(\s*name\s*\)|name)\s*=>\s*\{\s*\}/);
```
# --seed--
## --seed-contents--
```html
Functional Programming Spreadsheet