Why node.js is fast when it's single threaded?

Question

Despite being single threaded, how is node.js is faster? I haven\'t run any tests to find statistics, but while digging in the node.js forums, I find everyone says it\'s fa

Answer 1

Node.js is not single threaded : see https://nodejs.org/about/ :

any connections can be handled concurrently

In fact, it does not use system threads, but instead uses the V8 engine along with the libuv library for multi-threading through asynchronous callbacks.

Also, you can use additional child process through child_process.fork

Finally, this does not in any way condition speed of the response or overall speed of the engine. Multi-threading is here for scalability.