Understand handling messages in Node-Red: basics and tips for your every day Node-Red work

The thumbnail says "A-V" not "A-Z" as I don't pretend to give a full guide of everything on this topic, as Node-Red is growing fast and there is always something new. But based on my experience and working in Node-Red, I think this is what you should be aware of not to run in to traps and rabbit holes in Node-Red.

Example flow: https://github.com/nygma2004/km/blob/main/NR_tutorial_messages.json

Chapters: 0:00 Intro 0:40 Content 2:49 Basics 7:08 Routing messages 8:30 Splitting arrays 15:27 Splitting object 17:21 Storing data in the message 21:55 Sending data from function node 24:18 Conditional output 26:29 Node warnings 27:50 Asyncronous output message 29:47 Multiple messages on one output 31:38 Multiple messages on multiple outputs 38:21 Outro ... https://www.youtube.com/watch?v=Jq2HIPuiBmg