Backport of ...names for R < 4.1.0

See the original description in base::...names.

...names()

Examples

# get function from namespace instead of possibly getting
# implementation shipped with recent R versions:
bp_...names = getFromNamespace("...names", "backports")

foo = function(...) bp_...names()
foo(a = 1, b = 2, 3)
#> [1] "a" "b" ""