freeCodeCamp/curriculum/challenges/en/02-javascript-algorithms-and-data-structures/basic-javascript/create-decimal-numbers-with-javascript.en.md

---
id: cf1391c1c11feddfaeb4bdef
title: Create Decimal Numbers with JavaScript
challengeType: 1
---

## Description
<section id='description'>
We can store decimal numbers in variables too. Decimal numbers are sometimes referred to as <dfn>floating point</dfn> numbers or <dfn>floats</dfn>.
<strong>Note</strong><br>Not all real numbers can accurately be represented in <dfn>floating point</dfn>. This can lead to rounding errors. <a href="https://en.wikipedia.org/wiki/Floating_point#Accuracy_problems" target="_blank">Details Here</a>.
</section>

## Instructions
<section id='instructions'>
Create a variable <code>myDecimal</code> and give it a decimal value with a fractional part (e.g. <code>5.7</code>).
</section>

## Tests
<section id='tests'>

```yml
- text: <code>myDecimal</code> should be a number.
  testString: 'assert(typeof myDecimal === "number", ''<code>myDecimal</code> should be a number.'');'
- text: <code>myDecimal</code> should have a decimal point
  testString: 'assert(myDecimal % 1 != 0, ''<code>myDecimal</code> should have a decimal point''); '

```

</section>

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

<div id='js-seed'>

```js
var ourDecimal = 5.7;

// Only change code below this line


```

</div>


### After Test
<div id='js-teardown'>

```js
console.info('after the test');
```

</div>

</section>

## Solution
<section id='solution'>


```js
var myDecimal = 9.9;
```

</section>