Sorting functions in SASS

In this article, we will learn about sorting functions in Sass, but before continuing, let us have a basic understanding of Sass; Sass is a powerful and popular A CSS preprocessor language that allows developers to write more efficient and easier-to-maintain stylesheets. One of the biggest advantages of Sass is the ability to use functions to simplify the development process. However, Sass does not provide sorting functions by default.

Sorting is a common task in all programming languages ​​and is useful in many different contexts when using style sheets. Unfortunately, Sass does not provide any built-in sorting functions, but there are several workarounds developers can use to achieve the desired results.

One way to do sorting in Sass is to use loops and conditional statements. The method involves creating a loop that goes through the list to be sorted, comparing each item to the next item in the list, and swapping them if necessary. This process is repeated until the entire list is sorted; in this article, we will use the bubble sort algorithm using loops and functions to sort.

This is an example of using bubble sorting technology to implement a simple sorting function in Sass -

Example

This SCSS code defines a function sort($list), which can sort a set of numbers in ascending order and return the sorted list. This function uses a simple implementation of the bubble sort algorithm.

Let’s understand how it works, first, the function takes a list of numbers and sorts them in ascending order; it uses a while loop and a for loop with an if statement to compare each pair of adjacent ones in the list number. If they are out of order, it swaps them using temporary variables. Then repeat the process until the list is sorted.

@function sort($list) {
   $len: length($list);
   $sorted: false;
   @while not $sorted {
      $sorted: true;
      @for $i from 1 to ($len - 1) {
         $j: $i + 1;
         @if nth($list, $i) > nth($list, $j) {
            $temp: nth($list, $i);
            $list: set-nth($list, $i, nth($list, $j));
            $list: set-nth($list, $j, $temp);
            $sorted: false;
         }
      }
      $len: $len - 1;
   }
   @return $list;
}

The following section of code uses an @each loop to generate CSS code for each number in the sorted list, creating a CSS class with its width property set to the number value multiplied by 10 pixels.

$list: 10, 5, 3, 7, 2, 8;
$sorted-list: sort($list);

@each $num in $sorted-list {
   .number-#{$num} {
      width: #{$num * 10}px;
   }
}

Output

.number-2 {
   width: 20px;
}
.number-3 {
   width: 30px;
}
.number-5 {
   width: 50px;
}
.number-7 {
   width: 70px;
}
.number-10 {
   width: 100px;
}
.number-8 {
   width: 80px;
}

in conclusion

In this article, we learned about sorting functionality in SASS and learned that Sass does not provide any built-in sorting. However, you can write custom sort functions in SASS using a combination of control directives such as @for and @while loops, and list manipulation functions such as length(), nth(), and set-nth(). These custom functions can be used to sort a list of any data type, including numbers, strings, or objects, and can generate dynamic CSS code based on the sorted list.

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