I am trying to appended an integer to the end of a string using the method below, but it is not working.
let gatewayID = "0000d05fb8cf1608_0002_00_00000000009be3b6_0000_";
gatewayID = gatewayID + unit_number.toString() ;
Am I missing something?
I am using JS.
There is no toString() in mJS. Try JSON.stringify(unit_number).