os.endianness() Returns the endianness of the CPU. Possible values are 'BE' for big endian or 'LE' for little endian.

Class: fs.FSWatcher Objects returned from fs.watch() are of this type.

server.close([callback]) Stops the server from accepting new connections. See net.Server.close().

buf.writeUIntLE(value, offset, byteLength[, noAssert]) value <Number> Bytes to be written to Buffer offset <Number> 0 <= offset <= buf.length - byteLength byteLength <Number> 0 < byteLength <= 6 noAssert <Boolean> Default: false Return: <Number> The offset plus the number of written bytes Writes value to the Buffer at the specified offset and byteLength. Supports up to 48 bits of accuracy. For example: const buf = Buffer.allocUnsafe(6); buf.wri

console.assert(value[, message][, ...]) A simple assertion test that verifies whether value is truthy. If it is not, an AssertionError is thrown. If provided, the error message is formatted using util.format() and used as the error message. console.assert(true, 'does nothing'); // OK console.assert(false, 'Whoops %s', 'didn\'t work'); // AssertionError: Whoops didn't work

crypto.getHashes() Returns an array with the names of the supported hash algorithms. Example: const hashes = crypto.getHashes(); console.log(hashes); // ['sha', 'sha1', 'sha1WithRSAEncryption', ...]

Stability: 2 - Stable A stream is an abstract interface implemented by various objects in Node.js. For example a request to an HTTP server is a stream, as is process.stdout. Streams are readable, writable, or both. All streams are instances of EventEmitter. You can load the Stream base classes by doing require('stream'). There are base classes provided for Readable streams, Writable streams, Duplex streams, and Transform streams. This document is split up into 3 sections: The first section e

zlib.createUnzip(options) Returns a new Unzip object with an options.

process.chdir(directory) Changes the current working directory of the process or throws an exception if that fails. console.log(`Starting directory: ${process.cwd()}`); try { process.chdir('/tmp'); console.log(`New directory: ${process.cwd()}`); } catch (err) { console.log(`chdir: ${err}`); }

unref() The opaque value returned by setTimeout and setInterval also has the method timer.unref() which allows the creation of a timer that is active but if it is the only item left in the event loop, it won't keep the program running. If the timer is already unrefd calling unref again will have no effect. In the case of setTimeout, unref creates a separate timer that will wakeup the event loop, creating too many of these may adversely effect event loop performance -- use wisely. Returns the