Function appendFile

appendFile(
    this: unknown,
    path: PathLike | FileHandle,
    data:
        | FileContents
        | Iterable<string | ArrayBufferView<ArrayBufferLike>, any, any>
        | AsyncIterable<string | ArrayBufferView<ArrayBufferLike>, any, any>,
    _options?:
        | BufferEncoding
        | (
            EncodingOption & { mode?: Mode | undefined; flag?: OpenMode | undefined; }
        )
        | null,
): Promise<void>
Asynchronously append data to a file, creating the file if it not yet exists.
Parameters
- this: unknown
- path: PathLike | FileHandle
- data:
      | FileContents
      | Iterable<string | ArrayBufferView<ArrayBufferLike>, any, any>
      | AsyncIterable<string | ArrayBufferView<ArrayBufferLike>, any, any>
- Optional_options:
      | BufferEncoding
      | (
          EncodingOption & { mode?: Mode | undefined; flag?: OpenMode | undefined; }
      )
      | null
Returns Promise<void>

Option
encoding Defaults to 'utf8'.

Option
mode Defaults to 0644.

Option
flag Defaults to 'a'.
- Defined in src/node/promises.ts:719