Deno.stdin - Deno documentation
variable Deno.stdin

A reference to stdin which can be used to read directly from stdin. It implements the Deno specific Reader, ReaderSync, and Closer interfaces as well as provides a ReadableStream interface.

Reading chunks from the readable stream

const decoder = new TextDecoder();
for await (const chunk of Deno.stdin.readable) {
  const text = decoder.decode(chunk);
  // do something with the text
}

Type

Reader
& ReaderSync
& Closer
& { readonly rid: number; readonly readable: ReadableStream<Uint8Array>; setRaw(
mode: boolean,
options?: SetRawOptions,
): void; isTerminal(): boolean; }