IEx default and continuation prompt

prompt_iex.exs

IEx.configure(
  # This will display when we enter multi lines of code. I used 4 empty spaces.
  # If you need you can update it with the unicode symbols you like 
  continuation_prompt: "    ",
  default_prompt:
    [
      # ANSI CHA, move cursor to column 1
      "\e[G",
      # This is default prefix like iex
      # "%prefix",
      # custom symbols if you need play with them
      # "i👽x", "❯", ">",
      :yellow,
      # counter which helps us to reuse the previous results using v(counter)
      "%counter. ",
      :magenta,
      # custome elixir symbol; I used "". You can update at the beginnning of
      # this config
      elixir_icon,
      # this will reset previous color
      :reset
    ]
    |> IO.ANSI.format()
    |> IO.chardata_to_string()
)