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- # [postcss][postcss]-discard-comments
-
- > Discard comments in your CSS files with PostCSS.
-
-
- ## Install
-
- With [npm](https://npmjs.org/package/postcss-discard-comments) do:
-
- ```
- npm install postcss-discard-comments --save
- ```
-
-
- ## Example
-
- ### Input
-
- ```css
- h1/* heading */{
- margin: 0 auto
- }
- ```
-
- ### Output
-
- ```css
- h1 {
- margin: 0 auto
- }
- ```
-
- This module discards comments from your CSS files; by default, it will remove
- all regular comments (`/* comment */`) and preserve comments marked as important
- (`/*! important */`).
-
- Note that this module does not handle source map comments because they are not
- available to it; PostCSS handles this internally, so if they are removed then
- you will have to [configure source maps in PostCSS][maps].
-
- [maps]: https://github.com/postcss/postcss/blob/master/docs/source-maps.md
-
-
- ## API
-
- ### comments([options])
-
- #### options
-
- ##### remove(function)
-
- Type: `function`
- Return: `boolean`
- Variable: `comment` contains a comment without `/**/`
-
- For each comment, return true to remove, or false to keep the comment.
-
- ```js
- function(comment) {}
- ```
-
- ```js
- var css = '/* headings *//*@ h1 */h1{margin:0 auto}/*@ h2 */h2{color:red}';
- console.log(postcss(comments({
- remove: function(comment) { return comment[0] == "@"; }
- })).process(css).css);
- //=> /* headings */h1{margin:0 auto}h2{color:red}
- ```
- **NOTE:** If you use the `remove` function other options will not be available.
-
- ##### removeAll
-
- Type: `boolean`
- Default: `false`
-
- Remove all comments marked as important.
-
- ```js
- var css = '/*! heading */h1{margin:0 auto}/*! heading 2 */h2{color:red}';
- console.log(postcss(comments({removeAll: true})).process(css).css);
- //=> h1{margin:0 auto}h2{color:red}
- ```
-
- ##### removeAllButFirst
-
- Type: `boolean`
- Default: `false`
-
- Remove all comments marked as important, but the first one.
-
- ```js
- var css = '/*! heading */h1{margin:0 auto}/*! heading 2 */h2{color:red}';
- console.log(postcss(comments({removeAllButFirst: true})).process(css).css);
- //=> /*! heading */h1{margin:0 auto}h2{color:red}
- ```
-
-
- ## Usage
-
- See the [PostCSS documentation](https://github.com/postcss/postcss#usage) for
- examples for your environment.
-
-
- ## Contributors
-
- See [CONTRIBUTORS.md](https://github.com/cssnano/cssnano/blob/master/CONTRIBUTORS.md).
-
-
- ## License
-
- MIT © [Ben Briggs](http://beneb.info)
-
-
- [postcss]: https://github.com/postcss/postcss
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