# IS_NODE > Check if the runtime is [Node.js][node-js].

## Usage ```javascript var IS_NODE = require( '@stdlib/assert/is-node' ); ``` #### IS_NODE `Boolean` indicating if the runtime is [Node.js][node-js]. ```javascript var bool = IS_NODE; // returns ```

## Notes - In order to determine whether the runtime is [Node.js][node-js], the implementation must resolve the global scope, thus requiring function generation. The use of function generation may be problematic in browser contexts enforcing a strict [content security policy][mdn-csp] (CSP).

## Examples ```javascript var IS_NODE = require( '@stdlib/assert/is-node' ); console.log( IS_NODE ); // => ```

[node-js]: https://nodejs.org/en/ [mdn-csp]: https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP