Options which can be set when doing Deno.open and
Deno.openSync.
Properties Jump to heading
Jump to headingread: boolean = trueSets the option for read access. This option, when true, means that
the file should be read-able if opened.
Jump to headingwrite: boolean = falseSets the option for write access. This option, when true, means that
the file should be write-able if opened. If the file already exists,
any write calls on it will overwrite its contents, by default without
truncating it.
Jump to headingappend: boolean = falseSets the option for the append mode. This option, when true, means
that writes will append to a file instead of overwriting previous
contents.
Note that setting { write: true, append: true } has the same effect as
setting only { append: true }.
Jump to headingtruncate: boolean = falseSets the option for truncating a previous file. If a file is
successfully opened with this option set it will truncate the file to 0
size if it already exists. The file must be opened with write access
for truncate to work.
Jump to headingcreate: boolean = falseSets the option to allow creating a new file, if one doesn't already exist at the specified path. Requires write or append access to be used.
Jump to headingcreateNew: boolean = falseIf set to true, no file, directory, or symlink is allowed to exist at
the target location. Requires write or append access to be used. When
createNew is set to true, create and truncate are ignored.
Jump to headingmode: numberPermissions to use if creating the file (defaults to 0o666, before
the process's umask).
Ignored on Windows.