79d9012432
* fix(curriculum): tests quotes * fix(curriculum): fill seed-teardown * fix(curriculum): fix tests and remove unneeded seed-teardown
91 lines
2.8 KiB
Markdown
91 lines
2.8 KiB
Markdown
---
|
|
id: 5a94fe3669fb03452672e45f
|
|
title: Reduce Repetition Using the repeat Function
|
|
challengeType: 0
|
|
videoUrl: 'https://scrimba.com/p/pByETK/cQvqyHR'
|
|
---
|
|
|
|
## 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.
|
|
Lets 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.
|
|
<blockquote>grid-template-rows: repeat(100, 50px);</blockquote>
|
|
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 I mean:
|
|
<blockquote>grid-template-columns: repeat(2, 1fr 50px) 20px;</blockquote>
|
|
This translates to:
|
|
<blockquote>grid-template-columns: 1fr 50px 1fr 50px 20px;</blockquote>
|
|
<strong>Note</strong><br><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), '<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>.');
|
|
|
|
```
|
|
|
|
</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;
|
|
/* change the code below this line */
|
|
|
|
grid-template-columns: 1fr 1fr 1fr;
|
|
|
|
/* change the 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>
|