mirror of
https://github.com/vercel-labs/scriptc.git
synced 2026-10-20 05:40:17 +08:00
20 lines
665 B
TypeScript
20 lines
665 B
TypeScript
// Transform: _transform rewriting chunks (callback(null, data)), _flush
|
|
// appending a trailer before EOF, write-side 'finish' vs read-side 'end'
|
|
// ordering, and transformed data direct-emitting to 'data' listeners.
|
|
import { Transform } from "node:stream";
|
|
|
|
const t = new Transform({
|
|
transform(chunk, encoding, callback) {
|
|
callback(null, chunk.toString().toUpperCase());
|
|
},
|
|
flush(callback) {
|
|
callback(null, "!");
|
|
},
|
|
});
|
|
t.on("data", (c: Buffer) => console.log("data:", c.toString()));
|
|
t.on("end", () => console.log("end"));
|
|
t.on("finish", () => console.log("finish"));
|
|
console.log("w:", t.write("mixed Case"));
|
|
t.end("tail");
|
|
console.log("sync");
|