Files
freeCodeCamp/curriculum/challenges/italian/03-front-end-development-libraries/sass/store-data-with-sass-variables.md
Shaun Hamilton c2a11ad00d feat: add 'back/front end' in curriculum (#42596)
* chore: rename APIs and Microservices to include "Backend" (#42515)

* fix typo

* fix typo

* undo change

* Corrected grammar mistake

Corrected a grammar mistake by removing a comma.

* change APIs and Microservices cert title

* update title

* Change APIs and Microservices certi title

* Update translations.json

* update title

* feat(curriculum): rename apis and microservices cert

* rename folder structure

* rename certificate

* rename learn Markdown

* apis-and-microservices -> back-end-development-and-apis

* update backend meta

* update i18n langs and cypress test

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

* fix: add development to front-end libraries (#42512)

* fix: added-the-word-Development-to-front-end-libraries

* fix/added-the-word-Development-to-front-end-libraries

* fix/added-word-development-to-front-end-libraries-in-other-related-files

* fix/added-the-word-Development-to-front-end-and-all-related-files

* fix/removed-typos-from-last-commit-in-index.md

* fix/reverted-changes-that-i-made-to-dependecies

* fix/removed xvfg

* fix/reverted changes that i made to package.json

* remove unwanted changes

* front-end-development-libraries changes

* rename backend certSlug and README

* update i18n folder names and keys

* test: add legacy path redirect tests

This uses serve.json from the client-config repo, since we currently use
that in production

* fix: create public dir before moving serve.json

* fix: add missing script

* refactor: collect redirect tests

* test: convert to cy.location for stricter tests

* rename certificate folder to 00-certificates

* change crowdin config to recognise new certificates location

* allow translations to be used

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* add forwards slashes to path redirects

* fix cypress path tests again

* plese cypress

* fix: test different challenge

Okay so I literally have no idea why this one particular challenge
fails in Cypress Firefox ONLY. Tom and I paired and spun a full build
instance and confirmed in Firefox the page loads and redirects as
expected. Changing to another bootstrap challenge passes Cypress firefox
locally. Absolutely boggled by this.

AAAAAAAAAAAAAAA

* fix: separate the test

Okay apparently the test does not work unless we separate it into
a different `it` statement.

>:( >:( >:( >:(

Co-authored-by: Sujal Gupta <55016909+heysujal@users.noreply.github.com>
Co-authored-by: Noor Fakhry <65724923+NoorFakhry@users.noreply.github.com>
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>
2021-08-13 21:57:13 -05:00

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Markdown

---
id: 587d7dbd367417b2b2512bb4
title: Memorizzare dati con le variabili Sass
challengeType: 0
forumTopicId: 301460
dashedName: store-data-with-sass-variables
---
# --description--
Una caratteristica di Sass che è diversa da CSS è che utilizza le variabili. Esse sono dichiarate e impostate per memorizzare i dati, come in JavaScript.
In JavaScript, le variabili sono definite utilizzando le parole chiave `let` e `const`. In Sass, le variabili iniziano con un `$` seguito dal nome della variabile.
Ecco alcuni esempi:
```scss
$main-fonts: Arial, sans-serif;
$headings-color: green;
```
E per usare le variabili:
```scss
h1 {
font-family: $main-fonts;
color: $headings-color;
}
```
Un esempio in cui le variabili sono utili è quando un certo numero di elementi deve avere lo stesso colore. Se quel colore viene cambiato, l'unico punto da modificare nel codice è il valore della variabile.
# --instructions--
Crea una variabile `$text-color` e impostala su `red`. Quindi cambiare il valore della proprietà `color` per il `.blog-post` e per `h2` impostandoli alla variabile `$text-color`.
# --hints--
Il tuo codice dovrebbe avere una variabile Sass dichiarata per `$text-color` con un valore di `red`.
```js
assert(code.match(/\$text-color\s*:\s*?red\s*;/g));
```
Il tuo codice dovrebbe utilizzare la variabile `$text-color` per cambiare il `color` per gli elementi `.blog-post` e `h2`.
```js
assert(code.match(/color\s*:\s*\$text-color\s*;?/g));
```
Il tuo elemento `.blog-post` dovrebbe avere un `color` rosso.
```js
assert($('.blog-post').css('color') == 'rgb(255, 0, 0)');
```
I tuoi elementi `h2` dovrebbero avere un `color` rosso.
```js
assert($('h2').css('color') == 'rgb(255, 0, 0)');
```
# --seed--
## --seed-contents--
```html
<style type='text/scss'>
.header{
text-align: center;
}
.blog-post, h2 {
color: red;
}
</style>
<h1 class="header">Learn Sass</h1>
<div class="blog-post">
<h2>Some random title</h2>
<p>This is a paragraph with some random text in it</p>
</div>
<div class="blog-post">
<h2>Header #2</h2>
<p>Here is some more random text.</p>
</div>
<div class="blog-post">
<h2>Here is another header</h2>
<p>Even more random text within a paragraph</p>
</div>
```
# --solutions--
```html
<style type='text/scss'>
$text-color: red;
.header{
text-align: center;
}
.blog-post, h2 {
color: $text-color;
}
</style>
<h1 class="header">Learn Sass</h1>
<div class="blog-post">
<h2>Some random title</h2>
<p>This is a paragraph with some random text in it</p>
</div>
<div class="blog-post">
<h2>Header #2</h2>
<p>Here is some more random text.</p>
</div>
<div class="blog-post">
<h2>Here is another header</h2>
<p>Even more random text within a paragraph</p>
</div>
```