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Create an "empty" readable stream.
import emptyStream from 'https://cdn.jsdelivr.net/gh/stdlib-js/streams-node-empty@esm/index.mjs';You can also import the following named exports from the package:
import { factory, objectMode } from 'https://cdn.jsdelivr.net/gh/stdlib-js/streams-node-empty@esm/index.mjs';Returns an "empty" readable stream (i.e., a stream which never streams any values).
import inspectStream from 'https://cdn.jsdelivr.net/gh/stdlib-js/streams-node-inspect-sink@esm/index.mjs';
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 );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().
This method is a convenience function to create "empty" streams which always operate in objectMode.
import inspectStream from 'https://cdn.jsdelivr.net/gh/stdlib-js/streams-node-inspect-sink@esm/index.mjs';
function log( v ) {
console.log( v );
}
var stream = emptyStream.objectMode();
var opts = {
'objectMode': true
};
var iStream = inspectStream( opts, log );
stream.pipe( iStream );<!DOCTYPE html>
<html lang="en">
<body>
<script type="module">
import inspectStream from 'https://cdn.jsdelivr.net/gh/stdlib-js/streams-node-inspect-sink@esm/index.mjs';
import emptyStream from 'https://cdn.jsdelivr.net/gh/stdlib-js/streams-node-empty@esm/index.mjs';
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 );
</script>
</body>
</html>@stdlib/streams-node/from-constant: create a readable stream which always streams the same value.
This package is part of stdlib, a standard library with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
See LICENSE.
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