listr (version 0.1.0)

list_is_same_class: Check whether all elements of a list have the same class.

Description

This is a convenience function to check whether all elements of a list have the same class. It will only return TRUE if all elements in a list are of the exact same class. This means that if a list has two vectors TRUE will only be returned if they have the same mode or in case list has elements of compatible classes like data.frame and tbl.df the result will be false.

For the latter case there is `list_is_compatible_class` that checks whether elements of vectors of classes overlap. Note that this does not necessarily mean that elements can be safely combined, this depends on the respective implementations.

Usage

list_is_same_class(list)
list_is_compatible_class(list)

Value

Boolean value.

Arguments

list

The list to check.

Examples

test_list_false <- list(c(1, 2), c(3, 4), c("abc", "def"))
list_is_same_class(test_list_false)

test_list_true <- list(c(1, 2), c(3, 4))
list_is_same_class(test_list_true)