sass-site/source/documentation/at-rules/debug.liquid
Jonny Gerig Meyer 5be80afa11
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2023-05-30 16:27:01 -04:00

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---
title: "@debug"
introduction: >
Sometimes its useful to see the value of a
[variable](/documentation/variables) or
[expression](/documentation/syntax/structure#expressions) while youre
developing your stylesheet. Thats what the `@debug` rule is for: its written
`@debug <expression>`, and it prints the value of that expression, along with
the filename and line number.
---
{% codeExample 'debug', false %}
@mixin inset-divider-offset($offset, $padding) {
$divider-offset: (2 * $padding) + $offset;
@debug "divider offset: #{$divider-offset}";
margin-left: $divider-offset;
width: calc(100% - #{$divider-offset});
}
===
@mixin inset-divider-offset($offset, $padding)
$divider-offset: (2 * $padding) + $offset
@debug "divider offset: #{$divider-offset}"
margin-left: $divider-offset
width: calc(100% - #{$divider-offset})
{% endcodeExample %}
{% markdown %}
The exact format of the debug message varies from implementation to
implementation. This is what it looks like in Dart Sass:
```
test.scss:3 Debug: divider offset: 132px
```
{% endmarkdown %}
{% funFact %}
You can pass any value to `@debug`, not just a string! It prints the same
representation of that value as the [`meta.inspect()` function][].
[`meta.inspect()` function]: /documentation/modules/meta#inspect
{% endfunFact %}