check-scalar-isString | R Documentation |
Does the input contain a (non-empty) character string?
isString(x, nullOk = FALSE)
x |
Object. |
nullOk |
|
TRUE
on success;
FALSE
on failure, with cause set.
Updated 2022-12-14.
## TRUE ====
isString("hello")
## FALSE ====
isString(1)
isString("")
isString(NA_character_)
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