---
id: 587d7b88367417b2b2512b45
title: Write Higher Order Arrow Functions
challengeType: 1
videoUrl: ''
localeTitle: ''
---

## Description
undefined

## Instructions
undefined

## Tests
<section id='tests'>

```yml
tests:
  - text: ''
    testString: 'getUserInput => assert(getUserInput("index").match(/const\s+squaredIntegers/g), "<code>squaredIntegers</code> should be a constant variable (by using <code>const</code>).");'
  - text: ''
    testString: 'assert(Array.isArray(squaredIntegers), "<code>squaredIntegers</code> should be an <code>array</code>");'
  - text: ''
    testString: 'assert.deepStrictEqual(squaredIntegers, [16, 1764, 36], "<code>squaredIntegers</code> should be <code>[16, 1764, 36]</code>");'
  - text: ''
    testString: 'getUserInput => assert(!getUserInput("index").match(/function/g), "<code>function</code> keyword was not used.");'
  - text: ''
    testString: 'getUserInput => assert(!getUserInput("index").match(/(for)|(while)/g), "loop should not be used");'
  - text: ''
    testString: 'getUserInput => assert(getUserInput("index").match(/map|filter|reduce/g), "<code>map</code>, <code>filter</code>, or <code>reduce</code> should be used");'

```

</section>

## Challenge Seed
<section id='challengeSeed'>

<div id='js-seed'>

```js
const realNumberArray = [4, 5.6, -9.8, 3.14, 42, 6, 8.34, -2];
const squareList = (arr) => {
  "use strict";
  // change code below this line
  const squaredIntegers = arr;
  // change code above this line
  return squaredIntegers;
};
// test your code
const squaredIntegers = squareList(realNumberArray);
console.log(squaredIntegers);

```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```
</section>