Imagine having a vast array of SASS variables spread across different .scss files, such as:
$app-color-white: #ffffff;
$app-color-black: #000000;
How can we efficiently convert these variables into vanilla CSS variables?
:root {
--app-color-white: #ffffff;
--app-color-black: #000000;
}
Is there a SASS-specific method or perhaps a pre-processor that can help with this task?
I aim to use my SASS framework seamlessly in vanilla CSS projects as well.
This functionality is now achievable thanks to the utilization of Sass modules along with the innovative sass:meta.module-variables() feature: it
Provides a comprehensive list of all variables defined within a module, mapping variable names (without $) to their respective values.
Here is an example:
// _custom_vars.scss
$bg-color: blue;
$text-color: white;
// main_style.scss
@use 'sass:meta';
@use '_custom_vars';
:root {
@each $variable_name, $variable_value in meta.module-variables(_custom_vars) {
--#{$variable_name}: #{$variable_value};
}
}
The output will be:
:root {
--bg-color: blue;
--text-color: white;
}
⚠️ Please note that Sass modules are currently exclusive to Dart Sass.
In my opinion, utilizing a variable map would be the most effective approach for achieving this task;
For example:
// creating a Sass variable map
$colors: (
primary: #FFBB00,
secondary: #0969A2
);
// extracting CSS4 variables from color map
:root {
// iterating through each item in color map
@each $name, $color in $colors {
--color-#{$name}: $color;
}
}
Resulting output:
:root {
--color-primary: #FFBB00;
--color-secondary: #0969A2;
}
Reference: https://codepen.io/jakealbaugh/post/css4-variables-and-sass
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