How to:Elm runs in browsers, so it doesn’t have direct filesystem access. Therefore, you can’t create traditional temporary files. But, if you need a similar feature, we use Elm ports to interact with JavaScript, which can handle temporary file creation.
port module Main exposing (..) – Define a port for creating a temporary file in JavaScript port createTempFile : String -> Cmd msg – Send data to JavaScript to create a temporary file saveDataTemporarily : String -> Cmd msg saveDataTemporarily data = createTempFile data For the JavaScript part, using the File API: