@johngw/stream
Version:
Reactive programming tools using the WHATWG Streams API.
23 lines • 447 B
JavaScript
/**
* Subscribe to chunks in the stream, immediately passing any
* chunks on to the pipe.
*
* @group Transformers
* @example
* ```
* --1--2--3--4--5--6--
*
* tap(chunk => console.info(x))
*
* --1--2--3--4--5--6--
* ```
*/
export function tap(fn) {
return new TransformStream({
transform(chunk, controller) {
fn(chunk);
controller.enqueue(chunk);
},
});
}
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