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appendFile

method promises.FileHandle.appendFile
Jump to headingFileHandle.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 Jump to heading

Jump to headingdata: string | Uint8Array
optional
Jump to headingoptions:
(
ObjectEncodingOptions
& FlagAndOpenMode
& { flush?: boolean | undefined; }
)
| BufferEncoding
| null

Return Type Jump to heading

Promise<void>

Fulfills with undefined upon success.

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