Async waterfall example nodejs

To avoid callback hell , a very useful tool for structuring calls in a sequence and make sure the steps pass the data to the next step. nJoy 😉

Node.js Start script or run command and handoff to OS (no waiting)

Sometimes you want to run something in the OS from your node code but you do not want to follow it or have a callback posted on your stack. The default for child_process spawning is to hold on to a handle and park a callback on the stack. however there is an option which is…