WARNING: This function fails when the value of x is "x"!! (i.e. it returns TRUE even when object 'x' is NOT a string per se --i.e. it was not passed as "x")
Usage
is_string(x)
Arguments
x
object to check.
Value
boolean indicating whether the object is a string.
Details
The result of this function is different from is.character(x) since this function returns TRUE
for an array of character values!