Can You Use Variables in Sass Selectors?

Dynamic Selector Generation with Variables

In Sass, variables are a valuable tool for managing styles and maintaining consistency. When working with selectors, you may encounter scenarios where you want to dynamically generate a selector based on a variable. This question explores whether it's possible to use variables within selectors in Sass.

Using Variables in Selectors

The example provided demonstrates an attempt to use a variable $gutter in a Sass selector .grid $gutter. However, this won't work as expected. To achieve the desired result, the proper syntax is to use the hash syntax # to concatenate the variable within the selector string:

<code class="scss">$gutter: 10;

.grid#{$gutter} {
    background: red;
}</code>

This will generate the following CSS:

<code class="css">.grid10 {
    background: red;
}</code>

Using Variables in Dynamic Strings

Variables can also be used within dynamic strings. For instance, if you need to use a variable within a url() declaration, you can use the following syntax:

<code class="scss">$filename: 'Helvetica';

background: url('/ui/all/fonts/#{$filename}.woff')</code>

This will generate the following CSS:

<code class="css">background: url('/ui/all/fonts/Helvetica.woff')</code>

By understanding the proper syntax for using variables in selectors and dynamic strings in Sass, you can enhance the flexibility and maintainability of your stylesheets.

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