Hi all. I have tried searching and looking through node-red function and switch nodes but cant pin down how I can have 1 or 2 outputs depending on a users choice in a drop-down For example, suppose I had an option on my custom node... Throw errors (default) Send errors in msg.error Send errors t…

Hi @Steve-Mcl the trick is to add a property to your node's defaults object called outputs. You can then modify this.outputs as you would any other node property. The editor knows to watch that property and update the node accordingly. NIck

What am I doing wrong? I always get the message "Cannot use in operator ...". RED.nodes.registerType('sonosevents-notify', { category: 'sonosevents', defaults: { confignode: { value: '', type: 'sonosevents-config' }, outputs: 1 }, inputs: 0, // set …

You still need it at the higher level. As the original answer said you need to add it to defaults (as well)

Whilst you have added an outputs property to the defaults object, it isn't properly configured. You need to follow the same pattern used by the other properties in the defaults object: defaults: { outputs: { value: 1 } }

[image] knolleary: the trick is to add a property to your node's defaults object called outputs . This gets me almost but not quite where I want to go. I want my node to have one or two outputs, depending on the state of a checkbox. It seems like the variable associated with the checkbox is n…

You should be able to set node.outputs in an on change event. Supposing your check box is named node-input-check and "checked" means 2 outputs & unchecked means 1 output, this might be overkill but it covers all bases... defaults: { name: { value: "" }, check: { value: true }, outputs:…

[image] Steve-Mcl: this might be overkill Works a treat. Also seems to work without the oneditprepare section. Is that what you meant by "overkill"?

yes. the reason I added it there also was for other code below inside oneditprepare that was dependant.

Good point. Better safe than sorry. Thanks again.

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How can my custom node have dynamic number of outputs?

Developing Nodes

drmibell 30 December 2020 20:39 9

Thanks. This looks like just what I need. I'll give it a try.

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How can my custom node have dynamic number of outputs?

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