Slightly related, I've added an Object.keys function to the scripting API. Also works on arrays but will return an empty array in that case.

Link Preview Image Added Object.keys by davidhealey · Pull Request #695 · christophhart/HISE

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@ustk

Yeah I'd just use a loop. I'm not sure why find is not doing what's expected though... Also you don't need to set the second parameter as myArray because that's already there in the third parameter of the test function.

This is what I would do

local myArray = [0, 5, 10, 15, 20]; local element; for (x in myArray) { if (sample <= x) { element = x; break; } }