Mixin or Extend

[MohamadSalman11]

Now, I'm trying to decide between using @extend or @mixin for my project. They work differently: @mixin allows us to reuse style blocks, while @extend applies the same style to multiple selectors without duplicating code like @mixin does. For the bundled file size, @extend is more efficient because it avoids code duplication by adding selectors to existing rules. However, the downside of @extend is that we can’t use dynamic values like passing parameters. My question is: should I always use @extend and only switch to @mixin when I need dynamic values?

[ynng3]

Using @extend is more efficient for the bundled file size as it avoids code duplication by applying the same style to multiple selectors. However, since @extend cannot use dynamic values, it is recommended to switch to @mixin only when you need dynamic values.

@mixin is used for creating styles that require additional features like conditionals, loops, or user overrides, while @extend is used for simply copying existing styles.

Therefore, it is best to use them according to the situation.