JS RESOUCRCES

js.md

• event driven computing:

• multi-threaded process: create a new process for each incoming request (OLD WAY)

• node.js: server side architechture (one single application)

  • should never wait for anything on the server side
  • process goes out from the database and blocks (waiting for request, TRADITIONALLY) - works now because hardware is so fast and so cheap/working for the wrong reasons
  • leveraging event driven computing from client
  • uses callbacks so knows then the server is done /returned by the name of callback ("success")

• node.js has event loop: throw event into loop, get qued up, and when they are done, event loop knows that to do with the result(provided callback already)

• A socket address is the combination of an IP address and a port number, much like one end of a telephone connection is the combination of a phone number and a particular extension. Based on this address, internet sockets deliver incoming data packets to the appropriate application process or thread.