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method promises.FileHandle.appendFile
#FileHandle.appendFile(
data: string | Uint8Array,
options?:
(
ObjectEncodingOptions
& FlagAndOpenMode
& { flush?: boolean | undefined; }
)
| BufferEncoding
| null
,
): Promise<void>

Alias of filehandle.writeFile().

When operating on file handles, the mode cannot be changed from what it was set to with fsPromises.open(). Therefore, this is equivalent to filehandle.writeFile().

Parameters #

#data: string | Uint8Array
optional
#options:
(
ObjectEncodingOptions
& FlagAndOpenMode
& { flush?: boolean | undefined; }
)
| BufferEncoding
| null

Return Type #

Promise<void>

Fulfills with undefined upon success.