Array variables after user actions

See this link:
https://www.lawsonguru.co...e-after-user-action/

Arrays don't persist, but you can create an array, without declaring it to be an array. Make tarray a string and then write/append your values to it with an Assign node and when you need to read the array, use a JavaScript Expression to declare a new array, assign the values from tarray to it and then do some parsing or whatever you need to do. Note that the new array you declare won't carry out of the JavaScript Expression, however.
Another way to process an "undeclared" array is to deliminate the lines of data with a "|" and the data elements within a line with a comma.
1,2,3|
4,5,6|
You can then use a DataIterator to cycle through the variable (set input to Data instead of File) so each pipe seperated line is read (Delimiter = |) seperately and then your JavaScript Expression to parse the line.

var dline=DataIterator_OutputData
var darray=new Array()
darray=dline.split(",")
var1=darray[0]
var2=darray[1]
var3=darray[3]