freeCodeCamp/curriculum/challenges/english/01-responsive-web-design/css-grid/reduce-repetition-using-the-repeat-function.english.md

---
id: 5a94fe3669fb03452672e45f
title: Reduce Repetition Using the repeat Function
challengeType: 0
isHidden: false
videoUrl: 'https://scrimba.com/p/pByETK/cQvqyHR'
forumTopicId: 301133
---

## Description
<section id='description'>
When you used <code>grid-template-columns</code> and <code>grid-template-rows</code> to define the structure of a grid, you entered a value for each row or column you created.
Let's say you want a grid with 100 rows of the same height. It isn't very practical to insert 100 values individually. Fortunately, there's a better way - by using the <code>repeat</code> function to specify the number of times you want your column or row to be repeated, followed by a comma and the value you want to repeat.
Here's an example that would create the 100 row grid, each row at 50px tall.

```css
grid-template-rows: repeat(100, 50px);
```

You can also repeat multiple values with the repeat function and insert the function amongst other values when defining a grid structure. Here's what that looks like:

```css
grid-template-columns: repeat(2, 1fr 50px) 20px;
```

This translates to:

```css
grid-template-columns: 1fr 50px 1fr 50px 20px;
```

<strong>Note:</strong> The <code>1fr 50px</code> is repeated twice followed by 20px.
</section>

## Instructions
<section id='instructions'>
Use <code>repeat</code> to remove repetition from the <code>grid-template-columns</code> property.
</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>container</code> class should have a <code>grid-template-columns</code> property that is set to repeat 3 columns with the width of <code>1fr</code>.
    testString: assert(code.match(/.container\s*?{[\s\S]*grid-template-columns\s*?:\s*?repeat\s*?\(\s*?3\s*?,\s*?1fr\s*?\)\s*?;[\s\S]*}/gi));

```

</section>

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

<div id='html-seed'>

```html
<style>
  .item1{background:LightSkyBlue;}
  .item2{background:LightSalmon;}
  .item3{background:PaleTurquoise;}
  .item4{background:LightPink;}
  .item5{background:PaleGreen;}

  .container {
    font-size: 40px;
    min-height: 300px;
    width: 100%;
    background: LightGray;
    display: grid;
    /* Only change code below this line */

    grid-template-columns: 1fr 1fr 1fr;

    /* Only change code above this line */
    grid-template-rows: 1fr 1fr 1fr;
    grid-gap: 10px;
  }
</style>

<div class="container">
  <div class="item1">1</div>
  <div class="item2">2</div>
  <div class="item3">3</div>
  <div class="item4">4</div>
  <div class="item5">5</div>
</div>
```

</div>



</section>

## Solution
<section id='solution'>


```js
var code = ".container {grid-template-columns: repeat(3, 1fr);}"
```

</section>