# Readable Stream-like > Test if a value is Node [readable stream][nodejs-stream]-like.
## Usage ```javascript var isNodeReadableStreamLike = require( '@stdlib/assert/is-node-readable-stream-like' ); ``` #### isNodeReadableStreamLike( value ) Tests if a `value` is Node [readable stream][nodejs-stream]-like. ```javascript var transformStream = require( '@stdlib/streams/node/transform' ); var bool = isNodeReadableStreamLike( transformStream() ); // returns true ```
## Examples ```javascript var stream = require( 'stream' ); var transformStream = require( '@stdlib/streams/node/transform' ); var isNodeReadableStreamLike = require( '@stdlib/assert/is-node-readable-stream-like' ); var bool = isNodeReadableStreamLike( new stream.Readable() ); // returns true bool = isNodeReadableStreamLike( new stream.Duplex() ); // returns true bool = isNodeReadableStreamLike( new stream.Transform() ); // returns true bool = isNodeReadableStreamLike( transformStream() ); // returns true bool = isNodeReadableStreamLike( new stream.Writable() ); // returns false bool = isNodeReadableStreamLike( new stream.Stream() ); // returns false bool = isNodeReadableStreamLike( {} ); // returns false bool = isNodeReadableStreamLike( [] ); // returns false bool = isNodeReadableStreamLike( null ); // returns false function Stream() { return this; } bool = isNodeReadableStreamLike( Stream ); // returns false bool = isNodeReadableStreamLike( new Stream() ); // returns false ```