| # is-absolute [](https://www.npmjs.com/package/is-absolute) [](https://npmjs.org/package/is-absolute) [](https://npmjs.org/package/is-absolute) [](https://travis-ci.org/jonschlinkert/is-absolute) |
| |
| > Returns true if a file path is absolute. Does not rely on the path module and can be used as a polyfill for node.js native `path.isAbolute`. |
| |
| ## Install |
| |
| Install with [npm](https://www.npmjs.com/): |
| |
| ```sh |
| $ npm install --save is-absolute |
| ``` |
| |
| Originally based on the `isAbsolute` utility method in [express](https://github.com/visionmedia/express). |
| |
| ## Usage |
| |
| ```js |
| var isAbsolute = require('is-absolute'); |
| |
| isAbsolute('a/b/c.js'); |
| //=> 'false' |
| isAbsolute('/a/b/c.js'); |
| //=> 'true' |
| ``` |
| |
| **Explicitly test windows paths** |
| |
| ```js |
| isAbsolute.posix('/foo/bar'); |
| isAbsolute.posix('/user/docs/Letter.txt'); |
| //=> true |
| |
| isAbsolute.posix('foo/bar'); |
| //=> false |
| ``` |
| |
| **Explicitly test windows paths** |
| |
| ```js |
| var isAbsolute = require('is-absolute'); |
| |
| isAbsolute.win32('c:\\'); |
| isAbsolute.win32('//C://user\\docs\\Letter.txt'); |
| isAbsolute.win32('\\\\unc\\share'); |
| isAbsolute.win32('\\\\unc\\share\\foo'); |
| isAbsolute.win32('\\\\unc\\share\\foo\\'); |
| isAbsolute.win32('\\\\unc\\share\\foo\\bar'); |
| isAbsolute.win32('\\\\unc\\share\\foo\\bar\\'); |
| isAbsolute.win32('\\\\unc\\share\\foo\\bar\\baz'); |
| //=> true |
| |
| isAbsolute.win32('a:foo/a/b/c/d'); |
| isAbsolute.win32(':\\'); |
| isAbsolute.win32('foo\\bar\\baz'); |
| isAbsolute.win32('foo\\bar\\baz\\'); |
| //=> false |
| ``` |
| |
| ## About |
| |
| ### Related projects |
| |
| * [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://github.com/jonschlinkert/is-dotfile) | [homepage](https://github.com/jonschlinkert/is-dotfile "Return true if a file path is (or has) a dotfile. Returns false if the path is a dot directory.") |
| * [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://github.com/jonschlinkert/is-glob) | [homepage](https://github.com/jonschlinkert/is-glob "Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet") |
| * [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 "Returns `true` if the path appears to be relative.") |
| * [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 "Returns true if a filepath is a windows UNC file path.") |
| * [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 "Return true if a value is a valid glob pattern or patterns.") |
| |
| ### Contributing |
| |
| Pull requests and stars are always welcome. For bugs and feature requests, [please create an issue](../../issues/new). |
| |
| ### Contributors |
| |
| | **Commits** | **Contributor** | |
| | --- | --- | |
| | 35 | [jonschlinkert](https://github.com/jonschlinkert) | |
| | 1 | [es128](https://github.com/es128) | |
| | 1 | [shinnn](https://github.com/shinnn) | |
| | 1 | [Sobak](https://github.com/Sobak) | |
| |
| ### Building docs |
| |
| _(This project's readme.md is generated by [verb](https://github.com/verbose/verb-generate-readme), please don't edit the readme directly. Any changes to the readme must be made in the [.verb.md](.verb.md) readme template.)_ |
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| To generate the readme, run the following command: |
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| ```sh |
| $ npm install -g verbose/verb#dev verb-generate-readme && verb |
| ``` |
| |
| ### Running tests |
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| Running and reviewing unit tests is a great way to get familiarized with a library and its API. You can install dependencies and run tests with the following command: |
| |
| ```sh |
| $ npm install && npm test |
| ``` |
| |
| ### Author |
| |
| **Jon Schlinkert** |
| |
| * [github/jonschlinkert](https://github.com/jonschlinkert) |
| * [twitter/jonschlinkert](https://twitter.com/jonschlinkert) |
| |
| ### License |
| |
| Copyright © 2017, [Jon Schlinkert](https://github.com/jonschlinkert). |
| Released under the [MIT License](LICENSE). |
| |
| *** |
| |
| _This file was generated by [verb-generate-readme](https://github.com/verbose/verb-generate-readme), v0.6.0, on July 13, 2017._ |
