Difference between 'foreach' and 'parallel' in R?

Question

As the title suggest, I am confused about what is the difference between both package as they are both used in parallel computing in R.

Answer 1

foreach can execute using either %do% or %dopar% ... it only runs in parallel with %dopar%

More information available here: https://cran.r-project.org/web/packages/foreach/vignettes/foreach.pdf