index.js

'use strict';

var stream = require( 'stream' );
var transformStream = require( '@stdlib/streams/utils/transform' );
var isNodeStreamLike = require( './../lib' );

var bool = isNodeStreamLike( new stream.Stream() );
console.log( bool );
// => true

bool = isNodeStreamLike( new stream.Readable() );
console.log( bool );
// => true

bool = isNodeStreamLike( new stream.Writable() );
console.log( bool );
// => true

bool = isNodeStreamLike( new stream.Duplex() );
console.log( bool );
// => true

bool = isNodeStreamLike( new stream.Transform() );
console.log( bool );
// => true

bool = isNodeStreamLike( transformStream() );
console.log( bool );
// => true

bool = isNodeStreamLike( {} );
console.log( bool );
// => false

bool = isNodeStreamLike( [] );
console.log( bool );
// => false

bool = isNodeStreamLike( null );
console.log( bool );
// => false

function Stream() {
	return this;
}

bool = isNodeStreamLike( Stream );
console.log( bool );
// => false

bool = isNodeStreamLike( new Stream() );
console.log( bool );
// => false