purrr (version 0.3.4)

every: Do every, some, or none of the elements of a list satisfy a predicate?

Description

Do every, some, or none of the elements of a list satisfy a predicate?

Usage

every(.x, .p, ...)
some(.x, .p, ...)
none(.x, .p, ...)

Value

A logical vector of length 1.

Arguments

.x

A list or atomic vector.

.p

A predicate function to apply on each element of .x. some() returns TRUE when .p is TRUE for at least one element. every() returns TRUE when .p is TRUE for all elements. none() returns TRUE when .p is FALSE for all elements.`

...

Additional arguments passed on to .p.

Examples

y <- list(0:10, 5.5)
y %>% every(is.numeric)
y %>% every(is.integer)
y %>% some(is.integer)
y %>% none(is.character)