@naturalcycles/nodejs-lib
Version:
Standard library for Node.js
18 lines (16 loc) • 490 B
text/typescript
import { Writable } from 'stream'
import { TransformOptions, WritableTyped } from '../stream.model'
/**
* Will push all results to `arr`, will emit nothing in the end.
*/
export function writablePushToArray<IN>(arr: IN[], opt: TransformOptions = {}): WritableTyped<IN> {
return new Writable({
objectMode: true,
...opt,
write(chunk: IN, _, cb) {
arr.push(chunk)
// callback to signal that we processed input, but not emitting any output
cb()
},
})
}