How to Dynamically Generate Comma-Separated Column Classes in SCSS?

Dynamically Generating List of Column Classes with Comma Separation

It's a common scenario in grid systems to generate a dynamic list of column classes based on a given number of columns. SCSS, an extension of CSS, provides a powerful solution for such scenarios. However, it can be challenging to achieve the desired comma-separated list of classes.

To create a dynamic list of column classes with commas separating them, you can leverage the powerful @extend directive in SCSS. Here's how it works:

1. Define a placeholder class with the desired styles:

%float-styles {
  float: left;
}

2. Create a mixin that uses @extend to apply those styles to the generated column classes:

@mixin col-x-list {
  @for $i from 1 through $columns {
      .col-#{$i}-m { @extend %float-styles; }
  }
}

3. Call the mixin to generate the column classes:

@include col-x-list;

4. Define $columns with the desired number of columns:

$columns: 12;

This approach will generate a comma-separated list of column classes with the desired float style, such as:

.col-1-m, .col-2-m, .col-3-m, .col-4-m, .col-5-m, .col-6-m, .col-7-m, .col-8-m, .col-9-m, .col-10-m, .col-11-m, .col-12-m {
  float: left;
}

By using @extend, you can effectively apply styles from one selector to another, helping you achieve a dynamically generated list of column classes with minimal code duplication.

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