Do every or some elements of a list satisfy a predicate?

every(.x, .p, ...)

some(.x, .p, ...)



A list or atomic vector.


A single predicate function, a formula describing such a predicate function, or a logical vector of the same length as .x. Alternatively, if the elements of .x are themselves lists of objects, a string indicating the name of a logical element in the inner lists. Only those elements where .p evaluates to TRUE will be modified.


Additional arguments passed on to .f.


A logical vector of length 1.


x <- list(0, 1, TRUE) x %>% every(identity)
#> [1] TRUE
x %>% some(identity)
#> [1] TRUE
y <- list(0:10, 5.5) y %>% every(is.numeric)
#> [1] TRUE
y %>% every(is.integer)
#> [1] FALSE