Concatenate JSON arrays in ObjectScript

ConcatArrays.cls

/// ObjectScript does not include any built-in method for appending one JSON dynamic array to another.
/// This is equivalent to the JavaScript concat() method.
/// Call it with any number of arguments to concatenate them into a new array.
/// If an argument is a dynamic array, its elements will be added. Otherwise the argument itself will be added.
/// Thanks to Pravin Barton in this article https://community.intersystems.com/post/code-sample-concatenate-json-arrays
ClassMethod ConcatArrays(pArgs...) As %DynamicArray
{
    set outArray = ##class(%DynamicArray).%New() // or []
        for i=1:1:pArgs {
        set arg = pArgs(i)
        if ($IsObject(arg) && arg.%IsA("%DynamicArray")) {
            set iter = arg.%GetIterator()
            while iter.%GetNext(.key, .value) {
                do outArray.%Push(value)
            }
        } else {
            do outArray.%Push(arg)
        }
    }
    return outArray
}