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Home > @rushstack/node-core-library > FileSystem > appendToFile
Writes a text string to a file on disk, appending to the file if it already exists. Behind the scenes it uses fs.appendFileSync()<></>.
Signature:
static appendToFile(filePath: string, contents: string | Buffer, options?: IFileSystemWriteFileOptions): void;|
Parameter |
Type |
Description |
|---|---|---|
|
filePath |
string |
The absolute or relative path of the file. |
|
contents |
string | Buffer |
The text that should be written to the file. |
|
options |
(Optional) Optional settings that can change the behavior. |
Returns:
void
Throws an error if the folder doesn't exist, unless IFileSystemWriteFileOptionsBase.ensureFolderExists is set to true<></>.