Comparing CSS Variables to CSS Modules' @value functionality

Could you clarify the difference between the css function var(--red) and @value red from css modules for me?

CSS Modules Example:

@value red from "./color.m.css";

.background {
    background-color: red;
}

CSS Var() Example:

@import "./color.m.css";

.background {
    background-color: var(--red);
}

Are there any distinct advantages to using one over the other?
I appreciate any insight you can provide, thank you!

Answer №1

CSS modules @value versus CSS Var()

  1. CSS modules @value behaves similarly to preprocessor variables like sass/less, existing in compile time.
  2. Since it compiles to plain css, it functions across all browsers.

CSS Var(), on the other hand

  1. Acts as a dynamic variable within a css file, allowing changes to be immediately reflected in elements using it.
  2. Due to being a modern css feature, it is supported only in modern browsers.

Answer №2

Modules offer the flexibility to be imported from anywhere and used, while variables are limited to global and inline scope within a page.

Comparing modules and CSS variables is like comparing apples and oranges in my opinion.

For more information, please refer to the following links:

Click here for a description of CSS modules

Description of CSS variables

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