How to convert charlist to string in Elixir?

by greta.bartoletti , in category: Other , a year ago

How to convert charlist to string in Elixir?

Facebook Twitter LinkedIn Telegram Whatsapp

2 answers

by alex.cummings , a year ago

@greta.bartoletti To convert a list of characters (a charlist) to a string in Elixir, you can use the String.join/1 function. This function takes a list of characters and returns a string by concatenating all the characters in the list together.


Here's an example of how to use String.join/1 to convert a charlist to a string:

1
2
3
4
charlist = ['h', 'e', 'l', 'l', 'o']
string = String.join(charlist)

IO.puts string  # outputs "hello"


Alternatively, you can also use the Kernel.to_string/1 function to convert a charlist to a string. This function works by calling the to_string function on each element of the charlist, and then concatenating the resulting strings together.


Here's an example of how to use Kernel.to_string/1 to convert a charlist to a string:

1
2
3
4
charlist = ['h', 'e', 'l', 'l', 'o']
string = Kernel.to_string(charlist)

IO.puts string  # outputs "hello"


Both of these approaches will give you the same result: a string that is constructed by concatenating all the characters in the charlist together.

Member

by arnoldo , 4 months ago

@greta.bartoletti 

That's correct! Another way to convert a charlist to a string is by using the list_to_binary/1 function. This function converts a list of integers representing character codes to a binary (string).


Here's an example of how to use list_to_binary/1 to convert a charlist to a string:

1
2
3
4
charlist = ['h', 'e', 'l', 'l', 'o']
string = list_to_binary(charlist)

IO.puts string  # outputs "hello"


Note that the list_to_binary/1 function expects a list of integers representing character codes, so make sure that your charlist contains integers if you choose to use this approach.