# isRelativePath
> Test if a value is a relative path.
## Usage
```javascript
var isRelativePath = require( '@stdlib/assert/is-relative-path' );
```
#### isRelativePath( value )
Tests if a `value` is a relative path.
```javascript
var IS_WINDOWS = require( '@stdlib/assert/is-windows' );
var bool;
if ( IS_WINDOWS ) {
bool = isRelativePath( 'foo\\bar\\baz' );
// returns true
bool = isRelativePath( 'C:\\foo\\..\\bar\\baz' );
// returns false
} else {
bool = isRelativePath( './foo/bar/baz' );
// returns true
bool = isRelativePath( '/foo/../bar/baz' );
// returns false
}
```
#### isRelativePath.posix( value )
Tests if a `value` is a POSIX relative path.
```javascript
var bool = isRelativePath.posix( './foo/bar/baz' );
// returns true
bool = isRelativePath.posix( '/foo/../bar/baz' );
// returns false
```
#### isRelativePath.win32( value )
Tests if a `value` is a Windows relative path.
```javascript
var bool = isRelativePath.win32( 'foo\\bar\\baz' );
// returns true
bool = isRelativePath.win32( 'C:\\foo\\..\\bar\\baz' );
// returns false
```
## Notes
- `isRelativePath()` is platform-specific. On Windows platforms, the function is equal to `isRelativePath.win32()`. On POSIX platforms, the function is equal to `isRelativePath.posix()`.
## Examples
```javascript
var isRelativePath = require( '@stdlib/assert/is-relative-path' );
var bool = isRelativePath.posix( 'foo/' );
// returns true
bool = isRelativePath.posix( 'foo' );
// returns true
bool = isRelativePath.posix( '.' );
// returns true
bool = isRelativePath.posix( '' );
// returns true
bool = isRelativePath.posix( '/foo/bar/baz' );
// returns false
bool = isRelativePath.posix( '/foo/..' );
// returns false
bool = isRelativePath.win32( 'foo\\bar\\baz' );
// returns true
bool = isRelativePath.win32( 'foo/bar/baz' );
// returns true
bool = isRelativePath.win32( 'foo/..' );
// returns true
bool = isRelativePath.win32( '.' );
// returns true
bool = isRelativePath.win32( '' );
// returns true
bool = isRelativePath.win32( 'C:\\foo\\bar\\baz' );
// returns false
bool = isRelativePath.win32( '//server' );
// returns false
bool = isRelativePath.win32( '\\\\server' );
// returns false
bool = isRelativePath.win32( 'C:/foo/bar/baz' );
// returns false
bool = isRelativePath.win32( '/foo/..' );
// returns false
```
* * *
## CLI
### Usage
```text
Usage: is-relative-path [options] []
Options:
-h, --help Print this message.
-V, --version Print the package version.
--platform name Platform: 'win32' or 'posix'.
```
### Examples
```bash
$ is-relative-path ./foo/bar/baz --platform=posix
true
```
To use as a [standard stream][standard-streams],
```bash
$ echo -n './docs/repl.txt' | is-relative-path
true
```
[standard-streams]: https://en.wikipedia.org/wiki/Standard_streams