prop_names(x) returns the names of the properties
prop_exists(x, "prop") returns TRUE iif x has property prop.
Usage
prop_names(object)
prop_exists(object, name)
Arguments
- object
An object from a S7 class
- name
The name of the parameter as a character. Partial matching
is not performed.
Value
prop_names() returns a character vector; prop_exists() returns
a single TRUE or FALSE.
Examples
Foo <- new_class("Foo", properties = list(a = class_character, b = class_integer))
f <- Foo()
prop_names(f)
#> [1] "a" "b"
prop_exists(f, "a")
#> [1] TRUE
prop_exists(f, "c")
#> [1] FALSE