Adding The System Time for a Timestamp

[acestu]

Hi,

I have a set of gauges in dashbord but I need to put the time that the gauge is updated underneath, I have a ui template that will put the data below the gauge but I just want to put a time the same as the Pi system time, if I use:

msg.payload = new Date().toString();

return msg;

It returns allsorts of text ie (UTC) etc, etc, and it just dosen't fit into the ui, it has a scroll bar, any help appreciated.

Thanks

Stuart

[Nicholas O'Leary]

Hi,

this should point you in the right direction:

http://stackoverflow.com/questions/14638018/current-time-formatting-with-javascript

Nick

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[Mark Setrem]

A quick google for "How to format a JavaScript time" should give you enough info to format the date/time how you wish, which will hopefully then fit.

[acestu]

Thanks guys I will have a look at this now

Stuart

[Mike Bell]

Stuart,

I have solved similar problems using the NR moment node (node-red-contrib-moment) to format date/time strings for the dashboard. It gives you access to the formatting capabilities of moment.js. Depending on the structure of your flow, it might be easier than writing javascript for a function node.

Mike

[acestu]

Hi Mike, yes i stumbled on the moments node in the library, it's just a matter of working out how to use it lol, I would of thought somebody would of come up with a node for this by now.

thanks

Stuart

On Thursday, October 20, 2016 at 8:46:12 PM UTC+1, acestu wrote:

[Mike Bell]

Stuart,

As the contributor of the moment node (Julian Knight) was kind enough to point out to me, full documentation of moment.js is available at momentjs.com. In particular, you might want to look at http://momentjs.com/docs/#/displaying/.

Mike

[acestu]

Hi Mike,

Yes I found the documentation, I am going through it all now, what I meant was it all looks a bit daunting as I am not a coder or computer wizz, i am just learning how to make a home automation system.

Thanks

Stuart

On Thursday, October 20, 2016 at 8:46:12 PM UTC+1, acestu wrote:

[Mike Bell]

Stuart,

That makes two of us. (My coding credentials have long since expired.) Thankfully, his group has taught me just enough to be dangerous. 

Mike

[Julian Knight]

Please let me know if there is anything I can do to make things easier. It is somewhat inevitable that the formatting instructions are a little hard to parse to begin with if you aren't into programming. 

It quickly gets hard for a developer to make sure their docs are understandable by all so I'd welcome any feedback. The best way is to raise an issue on Github but you can also drop a note into this group.

[Scott C. Lemon]

Not sure if this helps or not, but I often use this simple snippet to add timestamps ...

var jsonDate = (new Date()).toJSON();

msg.payload.eventTimestamp = jsonDate;

You probably can do some additional formatting ...

[Julian Knight]

Or 

(new Date()).toISOString()

[Julian Knight]

Not always a good idea to try and format date/time strings though as there are too many edge cases. Hence the Moment.js library and my contributed node.