How to debug a function Node?

[Steve-Mcl]

@PizzaProgram

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If you really want to debug - use a debugger

Lots of clues on the forum

How to proper debug custom node

This is how I debug a custom node in VS Code... It works for me however since this is a dist version of node-red its difficult sometimes to debug client side issues. Other than that, debug stop points work in my node js files. For debuging my .html files, i enter debugger into the function & open F12 (chrome debugger stops on the debugger statement) Setup... Install node-red as per instructions on nodered.org Run it one time so that .node-red folder is generated Install own node... cd c:…

Debug JS code inside function node

Here is it... And although the topic is about debuging a custom node - it works perfectly well for your requirement... Just put debugger in your function node e.g... var x = msg.payload; debugger //...some complex code //...some complex code //...some complex code //...some complex code return msg; and if its all working, VSCode will pause on the debugger line.

Dumb question about editing a node

add debugger key word into your node, restart node-red, open the browser & devtools, give it a go. Y As i said earlier, I've not used it but i suspect it will fire when deleted from the editor (before deploy - so in other words, still active in the runtime). If you want to remove callbacks at the server side, I would suggest you need to use this.on('close' and its parameters to determine if there is a clean up (at server side) to do. reference

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demo of debugging a function node...

While running with vscode debugger attached, use the keyword debugger to instruct the debugger to stop...

Real debugging...