String.printable-question-mark
You're seeing just the function
printable-question-mark
, go back to String module for more information.
Specs
printable?(t(), 0) :: true
printable?(t(), pos_integer() | :infinity) :: boolean()
Checks if a string contains only printable characters up to character_limit
.
Takes an optional character_limit
as a second argument. If character_limit
is 0
, this
function will return true
.
Examples
iex> String.printable?("abc")
true
iex> String.printable?("abc" <> <<0>>)
false
iex> String.printable?("abc" <> <<0>>, 2)
true
iex> String.printable?("abc" <> <<0>>, 0)
true