Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!
Get Started for Free

chk_string

Check String

Description

Checks if string

is.character(x) && length(x) == 1L && !anyNA(x)

Usage

chk_string(x, x_name = NULL)

vld_string(x, x_name = NULL)

Arguments

x

The object to check.
x_name

A string of the name of object x or NULL.

Value

The chk_ function throws an informative error if the test fails.

The vld_ function returns a flag indicating whether the test was met.

Functions

  • vld_string: Validate String

See Also

Other chk_scalars: chk_date_time(), chk_date(), chk_number(), chk_scalar(), chk_tz(), chk_whole_number()

Examples

# chk_string
chk_string("1")
try(chk_string(1))
# vld_string
vld_string("1")
vld_string("")
vld_string(1)
vld_string(NA_character_)
vld_string(c("1", "1"))
chk

Check User-Supplied Function Arguments

v0.5.1
MIT + file LICENSE
Authors
Joe Thorley [aut, cre] (<https://orcid.org/0000-0002-7683-4592>), Kirill Müller [aut] (<https://orcid.org/0000-0002-1416-3412>), Ayla Pearson [ctb] (<https://orcid.org/0000-0001-7388-1222>), Poisson Consulting [cph, fnd]
Initial release

We don't support your browser anymore

Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.