time-to-botec/squiggle/node_modules/@stdlib/streams/node/empty

Empty Stream

Create an "empty" readable stream.

Usage

var emptyStream = require( '@stdlib/streams/node/empty' );

emptyStream( [options] )

Returns an "empty" readable stream (i.e., a stream which never streams any values).

var inspectStream = require( '@stdlib/streams/node/inspect-sink' );

function log( chunk ) {
    // This function should never be called...
    console.log( chunk.toString() );
}

var stream = emptyStream();
var iStream = inspectStream( log );

stream.pipe( iStream );

The function accepts the following options:

• objectMode: specifies whether a stream should operate in objectMode. Default: false.

To set stream options,

var opts = {
    'objectMode': true
};

var stream = emptyStream( opts );

---

emptyStream.factory( [options] )

Returns a function for creating "empty" readable streams.

var opts = {
    'objectMode': true
};

var createStream = emptyStream.factory( opts );

var stream1 = createStream();
var stream2 = createStream();
// ...

The method accepts the same options as emptyStream().

---

emptyStream.objectMode()

This method is a convenience function to create "empty" streams which always operate in objectMode.

var inspectStream = require( '@stdlib/streams/node/inspect-sink' );

function log( v ) {
    console.log( v );
}

var stream = emptyStream.objectMode();

var opts = {
    'objectMode': true
};
var iStream = inspectStream( opts, log );

stream.pipe( iStream );

---

Examples

var inspectStream = require( '@stdlib/streams/node/inspect-sink' );
var emptyStream = require( '@stdlib/streams/node/empty' );

function log( v ) {
    console.log( v.toString() );
}

var opts = {
    'objectMode': true
};
var stream = emptyStream( opts );

opts = {
    'objectMode': true
};
var iStream = inspectStream( opts, log );

stream.pipe( iStream );

---

CLI

Usage

Usage: empty-stream [options]

Options:

  -h,  --help               Print this message.
  -V,  --version            Print the package version.

Examples

$ empty-stream