Difference between SASS, SCSS, and LESS

SASS, SCSS, and LESS are CSS preprocessors that extend the functionality of regular CSS by allowing features like variables, nesting, mixins, and functions.

1. SASS (Syntactically Awesome Stylesheets)

• Older syntax of SASS (indented syntax, no curly braces or semicolons).
• File extension: .sass

• Example:

  $primary-color: blue
  
  body
    background-color: $primary-color
  

2. SCSS (Sassy CSS)

• Newer, more popular syntax of SASS that is fully compatible with regular CSS.
• File extension: .scss

• Example:

  $primary-color: blue;
  
  body {
    background-color: $primary-color;
  }
  

3. LESS (Leaner Style Sheets)

• Another CSS preprocessor developed by a different team, with similar features.
• File extension: .less

• Example:

  @primary-color: blue;
  
  body {
    background-color: @primary-color;
  }
  

Key Differences:

SCSS is the most widely adopted due to its familiar syntax and extensive community support.