Math.trunc is not a function

Setup, Configuration and Use Scripts & Rules
1

I’m trying to use Math.trunc in a transformation, I’ve tried both inline and as a script. But the openhab.log file is reporting it’s an unknown function:

Executing the JS-transformation failed: An error occurred while executing script. TypeError: Math.trunc is not a function in <eval> at line number

I’m using openHAB 3.4.0.RC1, and as far as I can tell, it’s supposed to be ECMAScript 2021+, which supports Math.trunc. It’s not the end of the world, as I can just use Math.round for this, which it doesn’t complain about.

How do I find out what functions I can use in openHAB? Is there something else I need to do to get this to work?

2

AFAIK, the JS Transformation in 3.x uses ECMAScript 5.1.

It will be upgraded to ECMAScript 2021 in openhab 4.0 if you install the jsscripting addon.

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