Class TextDelimiterStream

Transform a stream string into a stream where each chunk is divided by a given delimiter.

If you are working with a stream of Uint8Array, consider using DelimiterStream.

If you want to split by a newline, consider using TextLineStream.

Example: Comma-separated values

import { TextDelimiterStream } from "@std/streams/text-delimiter-stream";
import { assertEquals } from "@std/assert";

const stream = ReadableStream.from([
  "alice,20,",
  ",US,",
]);

const valueStream = stream.pipeThrough(new TextDelimiterStream(","));

assertEquals(
  await Array.fromAsync(valueStream),
  ["alice", "20", "", "US", ""],
);

Example: Semicolon-separated values with suffix disposition

import { TextDelimiterStream } from "@std/streams/text-delimiter-stream";
import { assertEquals } from "@std/assert";

const stream = ReadableStream.from([
  "const a = 42;;let b =",
  " true;",
]);

const valueStream = stream.pipeThrough(
  new TextDelimiterStream(";", { disposition: "suffix" }),
);

assertEquals(
  await Array.fromAsync(valueStream),
  ["const a = 42;", ";", "let b = true;", ""],
);
Hierarchy
  • TransformStream<string, string>
    • TextDelimiterStream

Constructors

constructor

Properties

readable writable

Constructors

constructor

Properties

Readonlyreadable

readable: ReadableStream<string>

MDN Reference

Readonlywritable

writable: WritableStream<string>

MDN Reference

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