Hi, i try to add a function in my flow. i have 2 inputs: playstate of my sonos speaker = msg.payload.play powerstate of my kenwood amp = msg.payload.kenwood I want toggle my Amp, if the playstate and powerstate are not identical. The Flow change the inputs of the nodes to "true" and "false" fo…

var play=msg.payload.play; var kenwood=msg.payload.kenwood; // if play and kenwood are both true, do nothing if (play == true && kenwood == true) return null; //do nothing // if play and kenwood are both false, do nothing if (play == false && kenwood == false) return null; //do nothing // if play…

Messages never arrive at the same time so you need to either store the values or use a join node. See this article in the cookbook for an example of how to join messages into one object.

Thank you. now the Inputs come at the same time. I stuck in the function: var play=msg.payload.play; var kenwood=msg.payload.kenwood; if (play !== kenwood){ ??????? } else null; return msg;

[image] corin.corvus: I stuck in the function: yeah - ok - so what are you trying to do? if you want to halt the flow of a msg, you can return null... var play=msg.payload.play; var kenwood=msg.payload.kenwood; if (play !== kenwood){ //what do you want to happen here? msg.payload = 1; …

play can be: true/false kenwood can be true/false (i can change it in numbers if easier) if play and kenwood are both true, do nothing if play and kenwood are both false, do nothing if play true and kenwood false, trigger next steps if play false and kenwood true, trigger next steps next step…

Or if (play == kenwood) msg = null return msg

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corin.corvus 26 November 2020 17:55 8

It works now!
Thank you @Steve-Mcl and @Colin for the second option

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