I notice that people are using this.msg instead of mounted() { // listen for incoming msg's from Node-RED // note our topic is "msg-input" + the node's unique ID this.$socket.on('msg-input:' + this.id, (msg) => { }), for tracking msg input …

Yep, for clarification, as Colin has mentioned, this.msg can changed on 2 events: widget-load: When the Dashboard/page first renders msg-input: When an input arrives via Node-RED to the ui-template node If you run a watch on msg, then that will fire in both of those instances. If you add your own…

Currently revealed difference is about reply message. The socet listening strategy helps to avoid it if needed. Overall the watch strategy offer cleaner and simpler codding. That's of course is opinion which doesn't qualify to be discussed.

[image] Buckskin: this.$socket.on('msg-input:' + this.id, I can't think of a reason for doing it, but does that mean one can listen for messages intended for other nodes, with a different id?

[image] hotNipi: Currently revealed difference is about reply message Sorry for being a bit slow, but would you explain this, I haven't seen anything about reply message apart from here and one of Colin's posts.

[image] Buckskin: reply message Actually it is Replay Message.

Sorry typo. But what IS replay message. I have haven't seen anything about this in the documentation. The only msg mentioned is this.msg which is the last msg received by the ui-template node

[image] Buckskin: The only msg mentioned is this.msg which is the last msg received by the ui-template node If you refresh the page (or open another browser window on it) then node red replays the last message sent to the template. That allows the node to set its current state, assuming that…

Well you learn something new every day!!

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Use of this.msg V this.$socket.on('msg-input:' + this.id, (msg)

Dashboard

Colin 29 February 2024 21:34 6

Yes, that is it: Retaining state information in a Dashboard 2 ui-template - #13 by hotNipi

Topic		Replies	Views
Message sent once but received twice Dashboard	12	484	26 November 2023
Refresh ui-node Dashboard	40	11361	31 March 2022
MsgObject in UINode Dashboard	1	308	18 August 2020
Msg replayed in UI node after a tab switch Developing Nodes	13	1113	19 May 2020
Retaining state information in a Dashboard 2 ui-template Dashboard dashboard-2	28	724	2 March 2024

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Use of this.msg V this.$socket.on('msg-input:' + this.id, (msg)

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