File

Prompts a dialog for the saving the given file.

file = await File.select(*)

File.download(file)

Creates a new file from the contents, name and mime-type.

File.fromString("Some contents...", "test.txt", "text/plain")

Returns the mime type of the file.

(File.fromString("Some contents...", "test.txt", "text/plain")
|> File.mimeType()) == "text/plain"

Returns the name of the file.

(File.fromString("Some contents...", "test.txt", "text/plain")
|> File.name()) == "test.txt"

Reads the contents of the given file as a String.

file =
  File.create("Some content...", "test.txt", "text/plain")

File.readAsArrayBuffer(file)

Reads the contents of the given file as a Data URL.

files =
  await File.select("text/plain")

url =
  File.readAsDataURL(file)

url == "data:text/plain;...."

Reads the contents of the given file as a String.

file =
  File.create("Some content...", "test.txt", "text/plain")

url =
  await File.readAsString(file)

url == "Some content..."

Opens the browsers file dialog for selecting a single file.

• The mime type can be restricted to the given one.

• It might not resolve if the user cancels the dialog.

  file = await File.select("application/json")

  Debug.log(file)

Opens the browsers file dialog for selecting multiple files.

• The mime type can be restricted to the given one.

• It might not resolve if the user cancels the dialog.

  files = await File.selectMultiple("application/json")

  Debug.log(files)

Returns the size of the file in bytes.

(File.fromString("Some contents...", "test.txt", "text/plain")
|> File.size()) == 16