---
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
tests:
  - 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
(function(){if(typeof myDecimal !== "undefined"){return myDecimal;}})();
```

</div>

</section>

## Solution
<section id='solution'>


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

</section>