Copies array elements from source to target.
statement has the following parameters:
||The name of the variable, typically an array, which should be copied.
||The name of the variable into which the contents of source should be copied.
All nodes in the target variable are deleted prior to the copy process. The only difference between Copy
is the deletion of the target nodes.
Erase source, target
target(1) = "node 1"
target(1,1) = "node 1,1"
target(2) = "node 2"
target(3,1) = "node 3,1"
source(3,2) = "node 3,2"
Copy target = source
Println Exists(target(3,1)) 'not defined anymore, returns 0
Println Exists(target(3,2)) 'does now exist, returns 1
Println Exists(target(1)) 'not defined and has no subnodes, returns 0