114 lines
2.3 KiB
Markdown
114 lines
2.3 KiB
Markdown
|
<!--
|
||
|
|
|
||
|
|
@license Apache-2.0
|
||
|
|
|
||
|
|
Copyright (c) 2018 The Stdlib Authors.
|
||
|
|
|
||
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
you may not use this file except in compliance with the License.
|
||
|
|
You may obtain a copy of the License at
|
||
|
|
|
||
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
|
||
|
|
Unless required by applicable law or agreed to in writing, software
|
||
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
See the License for the specific language governing permissions and
|
||
|
|
limitations under the License.
|
||
|
|
|
||
|
|
-->
|
||
|
|
|
||
|
|
# Writable Stream-like
|
||
|
|
|
||
|
|
> Test if a value is Node [writable stream][nodejs-stream]-like.
|
||
|
|
|
||
|
|
<section class="usage">
|
||
|
|
|
||
|
|
## Usage
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
var isNodeWritableStreamLike = require( '@stdlib/assert/is-node-writable-stream-like' );
|
||
|
|
```
|
||
|
|
|
||
|
|
#### isNodeWritableStreamLike( value )
|
||
|
|
|
||
|
|
Tests if a `value` is Node [writable stream][nodejs-stream]-like.
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
var transformStream = require( '@stdlib/streams/node/transform' );
|
||
|
|
|
||
|
|
var bool = isNodeWritableStreamLike( transformStream() );
|
||
|
|
// returns true
|
||
|
|
```
|
||
|
|
|
||
|
|
</section>
|
||
|
|
|
||
|
|
<!-- /.usage -->
|
||
|
|
|
||
|
|
<section class="notes">
|
||
|
|
|
||
|
|
</section>
|
||
|
|
|
||
|
|
<!-- /.notes -->
|
||
|
|
|
||
|
|
<section class="examples">
|
||
|
|
|
||
|
|
## Examples
|
||
|
|
|
||
|
|
<!-- eslint no-undef: "error" -->
|
||
|
|
|
||
|
|
```javascript
|
||
|
|
var stream = require( 'stream' );
|
||
|
|
var transformStream = require( '@stdlib/streams/node/transform' );
|
||
|
|
var isNodeWritableStreamLike = require( '@stdlib/assert/is-node-writable-stream-like' );
|
||
|
|
|
||
|
|
var bool = isNodeWritableStreamLike( new stream.Writable() );
|
||
|
|
// returns true
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( new stream.Transform() );
|
||
|
|
// returns true
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( new stream.Duplex() );
|
||
|
|
// returns true
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( transformStream() );
|
||
|
|
// returns true
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( new stream.Stream() );
|
||
|
|
// returns false
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( new stream.Readable() );
|
||
|
|
// returns false
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( {} );
|
||
|
|
// returns false
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( [] );
|
||
|
|
// returns false
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( null );
|
||
|
|
// returns false
|
||
|
|
|
||
|
|
function Stream() {
|
||
|
|
return this;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( Stream );
|
||
|
|
// returns false
|
||
|
|
|
||
|
|
bool = isNodeWritableStreamLike( new Stream() );
|
||
|
|
// returns false
|
||
|
|
```
|
||
|
|
|
||
|
|
</section>
|
||
|
|
|
||
|
|
<!-- /.examples -->
|
||
|
|
|
||
|
|
<section class="links">
|
||
|
|
|
||
|
|
[nodejs-stream]: https://nodejs.org/api/stream.html
|
||
|
|
|
||
|
|
</section>
|
||
|
|
|
||
|
|
<!-- /.links -->
|