String.Chars protocol
The String.Chars protocol is responsible for converting a structure to a binary (only if applicable).
The only function required to be implemented is to_string/1, which does the conversion.
The to_string/1 function automatically imported by Kernel invokes this protocol. String interpolation also invokes to_string/1 in its arguments. For example, "foo#{bar}" is the same as "foo" <> to_string(bar).
Summary
Types
Functions
- to_string(term)
-
Converts
termto a string.
Types
t()
Specs
t() :: term()Functions
to_string(term)
Specs
to_string(t()) :: String.t()Converts term to a string.
© 2012 Plataformatec
Licensed under the Apache License, Version 2.0.
https://hexdocs.pm/elixir/1.9.4/String.Chars.html