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80 lines
1.3 KiB
Markdown
80 lines
1.3 KiB
Markdown
# media-feature-name-no-unknown
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Disallow unknown media feature names.
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```css
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@media (min-width: 700px) {}
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/** ↑
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* These media feature names */
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```
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This rule considers media feature names defined in the CSS Specifications, up to and including Editor's Drafts, to be known.
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All vendor-prefixed media feature names are ignored.
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Caveat: Media feature names within a [range context](https://www.w3.org/TR/mediaqueries-4/#mq-ranges) are currently ignored.
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## Options
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### `true`
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The following patterns are considered warnings:
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```css
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@media screen and (unknown) {}
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```
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```css
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@media screen and (unknown: 10px) {}
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```
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The following patterns are *not* considered warnings:
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```css
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@media all and (monochrome) {}
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```
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```css
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@media (min-width: 700px) {}
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```
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```css
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@media (MIN-WIDTH: 700px) {}
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```
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```css
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@media (min-width: 700px) and (orientation: landscape) {}
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```
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```css
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@media (-webkit-min-device-pixel-ratio: 2) {}
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```
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## Optional secondary options
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### `ignoreMediaFeatureNames: ["/regex/", "string"]`
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Given:
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```js
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["/^my-/", "custom"]
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```
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The following patterns are *not* considered warnings:
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```css
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@media screen and (my-media-feature-name) {}
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```
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```css
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@media screen and (MY-MEDIA-FEATURE-NAME) {}
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```
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```css
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@media screen and (custom: 10px) {}
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```
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```css
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@media (min-width: 700px) and (custom: 10px) {}
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```
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