Deno.truncateSync
Synchronously truncates or extends the specified file, to reach the specified len
. If len
is not specified then the entire file contents are truncated.
// truncate the entire file
Deno.truncateSync("my_file.txt");
// truncate part of the file
const file = Deno.makeTempFileSync();
Deno.writeFileSync(file, new TextEncoder().encode("Hello World"));
Deno.truncateSync(file, 7);
const data = Deno.readFileSync(file);
console.log(new TextDecoder().decode(data));
Requires allow-write
permission.
function
truncateSync(
name: string
,
len?: number)
: void;
truncateSync(
name: string
,
len?: number)
: void
Parameters
name: string
len?: number
optional
Return Type
void
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https://doc.deno.land/deno/stable/~/Deno.truncateSync