# Node Version
> Node version.
## Usage
```javascript
var NODE_VERSION = require( '@stdlib/process/node-version' );
```
#### NODE_VERSION
Node version.
```javascript
console.log( NODE_VERSION );
// =>
```
## Notes
- In browser environments and environments other than Node.js the Node version is equal to `null`.
## Examples
```javascript
var semver = require( 'semver' );
var NODE_VERSION = require( '@stdlib/process/node-version' );
if ( semver.lt( NODE_VERSION, '1.0.0' ) ) {
console.log( 'Running on a pre-io.js version...' );
}
else if ( semver.lt( NODE_VERSION, '4.0.0' ) ) {
console.log( 'Running on an io.js version...' );
}
else {
console.log( 'Running on a post-io.js version...' );
}
```
* * *
## CLI
### Usage
```text
Usage: node-version [options]
Options:
-h, --help Print this message.
-V, --version Print the package version.
```
### Examples
```bash
$ node-version
```