Bun v0.7.0

const worker = new Worker("./worker.ts");
worker.addEventListener("message", (event: MessageEvent) => {
  console.log("Message from worker:", event.data);
});
worker.postMessage("Hello from main thread!");

addEventListener("message", (event: MessageEvent) => {
  console.log("Message from main thread:", event.data);
  postMessage("Hello from worker thread!");
});

const obj = { a: 1, b: 2 };
const clone = structuredClone(obj);

import { AsyncLocalStorage } from "node:async_hooks";

const requestId = new AsyncLocalStorage();
let lastId = 0;

Bun.serve({
  fetch(request) {
    lastId++;
    // Run the callback with 'requestId' set. async_hooks will preserve
    // this value through any chain of asynchronous code.
    return requestId.run(lastId, async () => {
      console.log(`Request ID: ${requestId.getStore()}`);
      await Bun.sleep(500);
      // Even if new requests mutate 'lastId', 'requestId' is still preserved.
      return new Response(`Request ID: ${requestId.getStore()}`);
    });
  },
});

smol = true

[test]
# set it only for tests, if you want
smol = true

import { readableStreamToFormData } from "bun";

// without dashes
const boundary = "WebKitFormBoundary" + Math.random().toString(16).slice(2);

const myStream = getStreamFromSomewhere(); // ...
const formData = await Bun.readableStreamToFormData(stream, boundary);
formData.get("foo"); // "bar"

import { readableStreamToFormData } from "bun";

const stream = new Response("hello=123").body;
const formData = await readableStreamToFormData(stream);
formData.get("hello"); // "123"

import { serialize, deserialize } from "bun:jsc";
import { deepEquals } from "bun";

const obj = { a: 1, b: 2 };
const buffer = serialize(obj);
const clone = deserialize(buffer);

if (deepEquals(obj, clone)) {
  console.log("They are equal!");
}

const ws = new WebSocket("wss://echo.websocket.org");
ws.addEventListener("pong", () => {
  console.log("Received pong");
});
ws.ping();

const ws = new WebSocket("wss://echo.websocket.org");

ws.addEventListener("message", (event: MessageEvent) => {
  console.log(event.data instanceof Buffer); // true
});

const ws = new WebSocket("wss://echo.websocket.org");
ws.binaryType = "arraybuffer";

ws.addEventListener("message", (event: MessageEvent) => {
  event.data; // ArrayBuffer
});

crypto.createHash("sha256").update("abc").digest("base64url");

//        Node.js:  "ungWv48Bz-pBQUDeXa4iI7ADYaOWF3qctBD_YfIAFa0"
//     Bun v0.7.0:  "ungWv48Bz-pBQUDeXa4iI7ADYaOWF3qctBD_YfIAFa0"
// <= Bun v0.6.14:  "data:base64,ungWv48Bz-pBQUDeXa4iI7ADYaOWF3qctBD_YfIAFa0="

const { columns, rows } = process.stdout;
const [columns, rows] = process.stdout.getWindowSize();
const { columns, rows } = process.stderr;
const [columns, rows] = process.stderr.getWindowSize();

cpu: Apple M1 Max
runtime: bun 0.7.0 (arm64-darwin)

benchmark                                                        time (avg)             (min … max)       p75       p99      p995
--------------------------------------------------------------------------------------------------- -----------------------------
new Response().arrayBuffer() (new string each call, latin1)    12.9 µs/iter      (625 ns … 4.18 ms)      1 µs 567.17 µs 711.79 µs
new Response().arrayBuffer() (new string each call, utf16)    12.85 µs/iter     (1.67 µs … 1.56 ms)   2.17 µs 462.75 µs 621.13 µs
new Response().arrayBuffer() (existing string, latin1)         6.53 µs/iter     (6.21 µs … 7.07 µs)   6.64 µs   7.07 µs   7.07 µs

Peak memory usage: 49 MB

cpu: Apple M1 Max
runtime: bun 0.7.0 (arm64-darwin)

benchmark                                                        time (avg)             (min … max)       p75       p99      p995
--------------------------------------------------------------------------------------------------- -----------------------------
new Response().arrayBuffer() (new string each call, latin1)   13.51 µs/iter       (541 ns … 3.2 ms)   1.92 µs 553.42 µs 709.92 µs
new Response().arrayBuffer() (new string each call, utf16)    13.07 µs/iter     (1.71 µs … 3.43 ms)   2.13 µs 451.21 µs 651.67 µs
new Response().arrayBuffer() (existing string, latin1)         6.25 µs/iter     (5.79 µs … 6.81 µs)    6.4 µs   6.81 µs   6.81 µs

Peak memory usage: 292 MB

error: Cannot use GraphQLScalarType "String" from another module or realm.

Ensure that there is only one instance of "graphql" in the node_modules
directory. If different versions of "graphql" are the dependencies of other
relied on modules, use "resolutions" to ensure only one version is installed.

https://yarn.dev.org.tw/en/docs/selective-version-resolutions

Duplicate "graphql" modules cannot be used at the same time since different
versions may have different capabilities and behavior. The data from one
version used in the function from another could produce confusing and
spurious results.