hasZeroLength: Does an Object Have a Length of Zero?

In KWB-R/kwb.utils: General Utility Functions Developed at KWB

Does an Object Have a Length of Zero?

Description

This is just a "shortcut" to "length(x) == 0L"

Usage

hasZeroLength(x)

Arguments

x	R object that has a length attribute, e.g. vector or list

Value

TRUE if length(x) == 0L, otherwise FALSE

Examples

hasZeroLength(character()) # TRUE

hasZeroLength(list()) # TRUE

# Do not confuse, has nothing to do with the length of a string
# here: vector of length one
hasZeroLength("") # FALSE

# Remember that the length of a data frame is the number of its columns
hasZeroLength(data.frame(a = character())) # FALSE

KWB-R/kwb.utils documentation built on April 1, 2024, 7:12 a.m.