MeerKatDev
How to empty a file
Is there a way to empty a file which is not closing and opening with :write?
Marked As Solved
lucaong
You can use the Erlang file module function position/2 and truncate/1 to set the position at the beginning of the file and truncate it:
file |> :file.position(:bof) |> :file.truncate()
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lucaong
Depending on the write mode, you might not need to do anything. If you open the file in :write mode, not combined with read, the file will be truncated upon opening. Otherwise, you could truncate it yourself (tip: check functions in Erlang file if the ones in the Elixir File module are missing what you need)
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