Node.js 19 boosts HTTP throughput

Node.js 19 has arrived. The newest replace to the favored JavaScript runtime permits HTTP Maintain-Alive by default, a change that ought to ship higher net throughput.

Accessible from nodejs.org, Node.js 19 was launched October 18. Starting with this launch, Node.js units keepAlive to true by default. Thus any outgoing HTTP(S) connection routinely will use HTTP 1.1 Maintain-Alive, offering higher throughput as connections are reused by default. There’s a default ready window of 5 seconds. Moreover, Node’s HTTP Agent is ready to parse the response Maintain-Alive that servers may ship. This header instructs the shopper on how lengthy to remain linked. The Node HTTP server now will routinely disconnect idle purchasers when shut() is invoked.

Node.js 19 will supplant Node.js 18 because the venture’s “Present” launch line when Node.js 18 enters Lengthy-Time period Assist standing later in October. Node.js 19 would be the Present launch till April 2023.

Additionally in Node.js 19:

• The WebCrypto API is now secure, apart from the Ed25519, Ed448, X25519, and X448 algorithms. This API supplies an implementation of the usual Net Crypto JavaScript API for performing fundamental cryptographic operations in net functions.
• An experimental node --watch possibility, accessible since Node.js 18.11, restarts the method when an imported file is modified.
• The V8 engine, which underpins Node.js, has been up to date to model 10.7.
• Assist for DTrace/SystemTap/ETW has been eliminated, with prioritization of assets given as the rationale.
• The --experimental-specifier-resolution flag has been eliminated. This performance now might be carried out through customized loaders.