109 lines
3.5 KiB
Markdown
109 lines
3.5 KiB
Markdown
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# is-absolute [](https://www.npmjs.com/package/is-absolute) [](https://npmjs.org/package/is-absolute) [](https://travis-ci.org/jonschlinkert/is-absolute)
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> Polyfill for node.js `path.isAbolute`. Returns true if a file path is absolute.
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## Install
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Install with [npm](https://www.npmjs.com/):
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```sh
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$ npm install is-absolute --save
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```
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Originally based on the `isAbsolute` utility method in [express](https://github.com/visionmedia/express).
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## Usage
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```js
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var isAbsolute = require('is-absolute');
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isAbsolute('a/b/c.js');
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//=> 'false'
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isAbsolute('/a/b/c.js');
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//=> 'true'
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```
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**Explicitly test windows paths**
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```js
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isAbsolute.posix('/foo/bar');
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isAbsolute.posix('/user/docs/Letter.txt');
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//=> true
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isAbsolute.posix('foo/bar');
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//=> false
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```
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**Explicitly test windows paths**
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```js
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var isAbsolute = require('is-absolute');
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isAbsolute.win32('c:\\');
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isAbsolute.win32('//C://user\\docs\\Letter.txt');
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isAbsolute.win32('\\\\unc\\share');
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isAbsolute.win32('\\\\unc\\share\\foo');
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isAbsolute.win32('\\\\unc\\share\\foo\\');
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isAbsolute.win32('\\\\unc\\share\\foo\\bar');
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isAbsolute.win32('\\\\unc\\share\\foo\\bar\\');
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isAbsolute.win32('\\\\unc\\share\\foo\\bar\\baz');
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//=> true
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isAbsolute.win32('a:foo/a/b/c/d');
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isAbsolute.win32(':\\');
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isAbsolute.win32('foo\\bar\\baz');
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isAbsolute.win32('foo\\bar\\baz\\');
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//=> false
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```
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## Related projects
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You might also be interested in these projects:
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* [is-dotfile](https://www.npmjs.com/package/is-dotfile): Return true if a file path is (or has) a dotfile. Returns false if the… [more](https://www.npmjs.com/package/is-dotfile) | [homepage](https://github.com/jonschlinkert/is-dotfile)
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* [is-glob](https://www.npmjs.com/package/is-glob): Returns `true` if the given string looks like a glob pattern or an extglob pattern.… [more](https://www.npmjs.com/package/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob)
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* [is-relative](https://www.npmjs.com/package/is-relative): Returns `true` if the path appears to be relative. | [homepage](https://github.com/jonschlinkert/is-relative)
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* [is-unc-path](https://www.npmjs.com/package/is-unc-path): Returns true if a filepath is a windows UNC file path. | [homepage](https://github.com/jonschlinkert/is-unc-path)
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* [is-valid-glob](https://www.npmjs.com/package/is-valid-glob): Return true if a value is a valid glob pattern or patterns. | [homepage](https://github.com/jonschlinkert/is-valid-glob)
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## Contributing
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Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](https://github.com/jonschlinkert/is-absolute/issues/new).
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## Building docs
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Generate readme and API documentation with [verb](https://github.com/verbose/verb):
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```sh
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$ npm install verb && npm run docs
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```
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Or, if [verb](https://github.com/verbose/verb) is installed globally:
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```sh
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$ verb
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```
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## Running tests
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Install dev dependencies:
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```sh
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$ npm install -d && npm test
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```
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## Author
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**Jon Schlinkert**
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* [github/jonschlinkert](https://github.com/jonschlinkert)
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* [twitter/jonschlinkert](http://twitter.com/jonschlinkert)
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## License
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Copyright © 2016, [Jon Schlinkert](https://github.com/jonschlinkert).
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Released under the [MIT license](https://github.com/jonschlinkert/is-absolute/blob/master/LICENSE).
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***
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_This file was generated by [verb](https://github.com/verbose/verb), v, on April 02, 2016._
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