Use `.source` to use the regex as a component of another regex:
```js
var myRegex = new RegExp(isUncPath.source + 'foo');
```
**[Rules for UNC paths](http://resources.esri.com/help/9.3/ArcGISDesktop/com/Gp_ToolRef/sharing_tools_and_toolboxes/pathnames_explained_colon_absolute_relative_unc_and_url.htm)**
* The computer name is always preceded by a double backward-slash (`\\`).
* UNC paths cannot contain a drive letter (such as `D:`)
* [is-absolute](https://www.npmjs.com/package/is-absolute): Polyfill for node.js `path.isAbolute`. Returns true if a file path is absolute. | [homepage](https://github.com/jonschlinkert/is-absolute "Polyfill for node.js `path.isAbolute`. Returns true if a file path is absolute.")
* [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.")
_(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.)_
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: