R: copy/move one environment to another

Question

I would like to ask if it is possible to copy/move all the objects of one environment to another, at once. For example:

f1 <- function() {
    print(v1)
          


        

Answer 1

I use this function in my package to copy objects:

copyEnv <- function(from, to, names=ls(from, all.names=TRUE)) {
  mapply(assign, names, mget(names, from), list(to), 
         SIMPLIFY = FALSE, USE.NAMES = FALSE)
  invisible(NULL)
}