This library tries to provide basic support for most common used Node.js modules and use cases. The focus is not to provide a 100% Node.js compatibility environment.
| Module |
Supported |
Description |
assert |
✅ |
Provides a set of assertion functions for testing |
async_hooks |
❌ |
Provides an API to track asynchronous resources |
buffer |
✅ |
Provides a way of handling binary data |
child_process |
❌ |
Allows for the creation of child processes |
cluster |
❌ |
Provides support for creating a cluster of Node.js processes |
console |
❌ |
Simple debugging console similar to the JavaScript console |
crypto |
❌ |
Provides cryptographic functionality |
dgram |
❌ |
Provides implementation of UDP datagram sockets |
dns |
❌ |
Provides DNS lookups and name resolution functions |
domain |
❌ |
Simplified handling of uncaught exceptions |
events |
❌ |
Provides an event-driven programming model |
fs |
✅ |
Provides an API for interacting with the file system |
http |
❌ |
Provides HTTP server and client functionality |
http2 |
❌ |
Provides HTTP/2 server and client functionality |
https |
❌ |
Provides HTTPS server and client functionality |
inspector |
❌ |
Provides an interface for debugging Node.js applications |
module |
✅ |
Load and manage Node.js modules |
net |
❌ |
Provides an asynchronous network API |
os |
❌ |
Provides operating system-related utility methods |
path |
✅ |
Provides utilities for working with file and directory paths |
perf_hooks |
❌ |
Performance timing APIs |
process |
✅ |
Provides information and control over the current process |
punycode |
✅ |
Provides encoding and decoding of Punycode |
querystring |
✅ |
Provides utilities for parsing and formatting URL query strings |
readline |
❌ |
Provides an interface for reading data from a Readable stream |
repl |
❌ |
Provides a Read-Eval-Print Loop (REPL) interface |
stream |
❌ |
Provides an API for implementing stream-based I/O |
string_decoder |
✅ |
Provides utilities for decoding buffer objects into strings |
timers |
❌ |
Provides timer functions similar to those in JavaScript |
tls |
❌ |
Provides an implementation of TLS and SSL protocols |
trace_events |
❌ |
Provides a mechanism to centralize tracing information |
tty |
❌ |
Provides utilities for working with TTYs (terminals) |
url |
✅ |
Provides utilities for URL resolution and parsing |
util |
✅ |
Provides various utility functions |
v8 |
❌ |
Provides an API for interacting with the V8 JavaScript engine |
vm |
❌ |
Provides APIs for compiling and running code within V8 VM contexts |
worker_threads |
❌ |
Provides a mechanism to use threads for JavaScript execution |
zlib |
❌ |
Provides compression and decompression functionalities |
node:fs
Thanks to memfs, this lib provides basic support of node:fs and node:fs/promises module.
| Method |
Supported |
| access |
|
| accessSync |
|
| appendFile |
✅ |
| appendFileSync |
✅ |
| chmod |
❌ |
| chmodSync |
❌ |
| chown |
❌ |
| chownSync |
❌ |
| close |
|
| closeSync |
|
| copyFile |
|
| copyFileSync |
|
| createReadStream |
|
| createWriteStream |
|
| exists |
✅ |
| existsSync |
✅ |
| fchmod |
❌ |
| fchmodSync |
❌ |
| fchown |
❌ |
| fchownSync |
❌ |
| fdatasync |
|
| fdatasyncSync |
|
| fstat |
|
| fstatSync |
|
| fsync |
|
| fsyncSync |
|
| ftruncate |
|
| ftruncateSync |
|
| futimes |
|
| futimesSync |
|
| lchmod |
❌ |
| lchmodSync |
❌ |
| lchown |
❌ |
| lchownSync |
❌ |
| link |
|
| linkSync |
|
| lstat |
|
| lstatSync |
|
| mkdir |
✅ |
| mkdirSync |
✅ |
| mkdtemp |
✅ |
| mkdtempSync |
✅ |
| open |
|
| openSync |
|
| readdir |
✅ |
| readdirSync |
✅ |
| read |
|
| readSync |
|
| readFile |
✅ |
| readFileSync |
✅ |
| readlink |
|
| readlinkSync |
|
| realpath |
|
| realpathSync |
|
| rename |
✅ |
| renameSync |
✅ |
| rmdir |
✅ |
| rmdirSync |
✅ |
| stat |
|
| statSync |
|
| symlink |
|
| symlinkSync |
|
| truncate |
|
| truncateSync |
|
| unlink |
|
| unlinkSync |
|
| utimes |
|
| utimesSync |
|
| write |
|
| writeSync |
|
| writeFile |
✅ |
| writeFileSync |
✅ |
node:assert
| Method |
Supported |
| fail |
✅ |
| ok |
✅ |
| equal |
✅ |
| notEqual |
✅ |
| deepEqual |
✅ |
| notDeepEqual |
✅ |
| strictEqual |
✅ |
| notStrictEqual |
✅ |
node:module
| Method |
Supported |
| createRequire |
✅ |
| isBuiltin |
✅ |
| register |
❌ |
| syncBuiltinESMExports |
❌ |
node:path
| Method |
Supported |
| parse |
✅ |
| format |
✅ |
| extname |
✅ |
| basename |
✅ |
| dirname |
✅ |
| _makeLong |
✅ |
| relative |
✅ |
| join |
✅ |
| isAbsolute |
✅ |
| normalize |
✅ |
| resolve |
✅ |
| _format |
✅ |
| normalizeStringPosix |
✅ |
| assertPath |
✅ |
node:util
| Method |
Supported |
| promisify |
✅ |
| callbackify |
✅ |
| inherits |
✅ |
| deprecate |
✅ |
Here are the supported util.types methods:
| Method |
Supported |
| isAnyArrayBuffer |
✅ |
| isArrayBufferView |
✅ |
| isArgumentsObject |
✅ |
| isArrayBuffer |
✅ |
| isAsyncFunction |
✅ |
| isBigInt64Array |
✅ |
| isBigUint64Array |
✅ |
| isBooleanObject |
✅ |
| isBoxedPrimitive |
✅ |
| isDataView |
✅ |
| isDate |
✅ |
| isFloat32Array |
✅ |
| isFloat64Array |
✅ |
| isGeneratorFunction |
✅ |
| isGeneratorObject |
✅ |
| isInt8Array |
✅ |
| isInt16Array |
✅ |
| isInt32Array |
✅ |
| isMap |
✅ |
| isMapIterator |
✅ |
| isNativeError |
✅ |
| isNumberObject |
✅ |
| isPromise |
✅ |
| isRegExp |
✅ |
| isSet |
✅ |
| isSetIterator |
✅ |
| isSharedArrayBuffer |
✅ |
| isStringObject |
✅ |
| isSymbolObject |
✅ |
| isTypedArray |
✅ |
| isUint8Array |
✅ |
| isUint8ClampedArray |
✅ |
| isUint16Array |
✅ |
| isUint32Array |
✅ |
| isWeakMap |
✅ |
| isWeakSet |
✅ |