Hi, I have been trying to work out why this doesn't work correctly, but cannot see why it is wrong ? I have a counter that increments by 1 every 5 seconds, that inputs to this function. The answer on the output should be 1 every time but I get (see image below) I think something to do with how i…

Not enough information. Is that the complete function? is the debug attached to the function? where do you set flow.now? how many nodes feed this function node?

Hi @questuk where/how are you setting the now flow context property? You say you are feeding messages to this function, but you don't refer to the incoming msg.payload anywhere - is that intentional? Nick

Hi Zenofmud and Nick I have a function that is a simple increment counter adds 1 every 5 seconds. This function then inputs to the "store" function ... flow.set('now',msg.payload); return msg; and then into the final node. [21] The full message debug outputs are [18]

Here is the flow ... [{"id":"796db0f4.2ef2b","type":"inject","z":"a13b9737.d91218","name":"trigger at start","topic":"","payload":"0","payloadType":"str","repeat":"","crontab":"","once":true,"x":240,"y":580,"wires":[["c3e34e7e.6df918"]]},{"id":"c3e34e7e.6df918","type":"function","z":"a13b9737.d9121…

So when/how do you reset the flow variables to zero when you want to re-test this??

Hi I have changed the flow from original as I wasn't resetting everything correctly and I have simplified it. [52] Wrapped in ''' at start and ''' at end, is this now correct ? [{"id":"2bd05d20.0ee19a","type":"function","z":"a13b9737.d91218","name":"Store","func":"\nglobal.set('now',msg.paylo…

[image] questuk: Wrapped in ''' at start and ''' at end, is this now correct ? Sadly no. The backticks need to be on separate lines, one before and one after. @knolleary you FAQ post is not entirely clear on this point. Also are those backticks? They may be, but it is not clear looking at …

OK got it looked everywhere for back tick on UK keyboard, I have never used that symbol before ! Here it is for anyone else, marked in red square. [08]

I don't know exactly what you are trying to achieve, but did you intend that in the Compare function you are setting global.last to the difference, not to the 'now' value? To help debug code you can use node.warn() to get output to the debug pane. For example you could insert a line in the functio…

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Simple sum gives wrong answer ... I am using get and set

General

knolleary 11 November 2018 13:31 7

Please read the this post How to share code or flow json and edit your last post to properly share your flow.

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Simple sum gives wrong answer ... I am using get and set

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