Merge two lists and overwrite latter entries with former entries if names are the same.

For example, list_merge(list(a = 1, b = 2), list(b = 3, c = 4)) will be list(a = 1, b = 3, c = 4).

list_merge(list1, list2)

Arguments

list1	list
list2	list

Value

the merged list.

Examples

stopifnot(identical(list_merge(list(a = 1, b = 2), list(b = 3, c = 4)),
                    list(a = 1, b = 3, c = 4)))
stopifnot(identical(list_merge(NULL, list(a = 1)), list(a = 1)))