Bun v1.1.28

console.log(process._exiting); // Previously: `undefined`, now: `false`

process.on("exit", () => {
  console.log(process._exiting); // true
});

import { workerData } from "worker_threads";

console.log(workerData); // Previously: `undefined`, now: `null`

import { constants } from "perf_hooks";
console.log(constants.NODE_PERFORMANCE_MILESTONE_BOOTSTRAP_COMPLETE); // 7
console.log(constants.NODE_PERFORMANCE_MILESTONE_ENVIRONMENT); // 2
console.log(constants.NODE_PERFORMANCE_MILESTONE_LOOP_EXIT); // 6
console.log(constants.NODE_PERFORMANCE_MILESTONE_LOOP_START); // 5
console.log(constants.NODE_PERFORMANCE_MILESTONE_NODE_START); // 3
console.log(constants.NODE_PERFORMANCE_MILESTONE_TIME_ORIGIN_TIMESTAMP); // 0
console.log(constants.NODE_PERFORMANCE_MILESTONE_TIME_ORIGIN); // 1
console.log(constants.NODE_PERFORMANCE_MILESTONE_V8_START); // 4
console.log(constants.NODE_PERFORMANCE_ENTRY_TYPE_DNS); // 4
console.log(constants.NODE_PERFORMANCE_ENTRY_TYPE_GC); // 0
console.log(constants.NODE_PERFORMANCE_ENTRY_TYPE_HTTP); // 1
console.log(constants.NODE_PERFORMANCE_ENTRY_TYPE_HTTP2); // 2
console.log(constants.NODE_PERFORMANCE_ENTRY_TYPE_NET); // 3

import { createGzip } from "zlib";

createGzip({ level: undefined });

import { promises } from "timers";

console.time("timeout");
await promises.setTimeout(1000);
console.timeEnd("timeout"); // [1002.48ms] test

import { spawnSync } from "child_process";
import { join } from "path";

// This will search for `foo` in `./node_modules/package/bin/`
spawnSync("./bin/foo", { cwd: join(import.meta.dir, "node_modules/package") });