# isNodeREPL > Check if running in a [Node.js][node-js] REPL environment.
## Usage ```javascript var isNodeREPL = require( '@stdlib/assert/is-node-repl' ); ``` #### isNodeREPL() Returns a `boolean` indicating if running in a [Node.js][node-js] REPL environment. ```javascript var bool = isNodeREPL(); // returns ```
## Examples ```javascript var isNodeREPL = require( '@stdlib/assert/is-node-repl' ); console.log( isNodeREPL() ); // => ```