check_null: Check NULL

In poissonconsulting/checkr: Check the Properties of Common R Objects

Check NULL

Description

Checks whether an object is NULL.

Usage

check_null(x, x_name = substitute(x), error = TRUE)

Arguments

x	The object to check.
x_name	A string of the name of the object x.
error	A flag indicating whether to throw an informative error or immediately generate an informative message if the check fails.

Value

An invisible copy of x (if it doesn't throw an error).

Examples

check_null(1, error = FALSE)
check_null(NULL, error = FALSE)

poissonconsulting/checkr documentation built on Oct. 18, 2023, 9:39 p.m.