Count() in Lambda?

Erin

I have an array of objects that have their own little arrays:

[

{"numbers":[[1],[1,2],[1,2,3]]},

{"numbers":[[4],[4,5],[4,5,6]]}

]

I want to update the objects to include only child arrays with with more than one element so the result would be:

[

{"numbers":[[1,2],[1,2,3]]},

{"numbers":[[4,5],[4,5,6]]}

]

My research says that in Javascript, this is accomplished using count(). So it would look something like:

return $this.numbers.count() >1

But when I run that, it thinks "count" is a field within "numbers".

How do I write the Javascript in Xano's Lambda to count elements within an array?

Thanks!

Ray Deck

Hey @Erin , neat problem! I made a short video to show you how to accomplish this goal with a lambda as well as with the nocode stack: https://share.descript.com/view/oUo2RABfvjU

This is the kind of hard problem we work on during our daily State Change Pro office hours.

Erin

@Ray Deck Thank you so much for that fantastically detailed response! I had hoped that Lambdas had some magical way of processing arrays that was more efficient than loops. But now I know, so I went the no-code loop route for my situation.

Really appreciate the generous answer, and kudos on such a valuable business model.