Handlebar Helpers in TSVB Markdown

Elastic Stack Kibana
1

Hi Team,

I want to add some Handlebar helpers like below. So that i can use it in TSVB Markdown. I need to use it for calculate difference between the two count values. @tsullivan @devon.thomson @bhavyarm Help required.

Handlebars.registerHelper('difference', function (val1, val2) {
    return val1-val2;
})
2

It's not possible to add custom helpers to markdown. However, to calculate a difference you should be able to use the "math" aggregation in the data tab

3

Math wont work between Layers.. I want show count of this Month , Count of Previous Month and Difference between counts. Can you pls help on it

4

Good point, that's not possible in TSVB. Lens formula allows to do calculations across different time ranges - see Analyze time series data | Kibana Guide [8.1] | Elastic

However, you can't use it together with Markdown yet - if a regular metric vis works for you too then that might be an option.

5

If i do math calculations like {{ subtract previous_count thismonth_count}} in Markdown handlers it would be better.

6

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