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