feat(unstable): add Deno.ftruncate and ftruncateSync (#6243)

1 files changed, 8 insertions, 0 deletions

diff --git a/cli/js/ops/fs/truncate.ts b/cli/js/ops/fs/truncate.ts
index 861e843f8..2b805e5ac 100644
--- a/cli/js/ops/fs/truncate.ts
+++ b/cli/js/ops/fs/truncate.ts
@@ -13,6 +13,14 @@ function coerceLen(len?: number): number {
   return len;
 }
 
+export function ftruncateSync(rid: number, len?: number): void {
+  sendSync("op_ftruncate", { rid, len: coerceLen(len) });
+}
+
+export async function ftruncate(rid: number, len?: number): Promise<void> {
+  await sendAsync("op_ftruncate", { rid, len: coerceLen(len) });
+}
+
 export function truncateSync(path: string, len?: number): void {
   sendSync("op_truncate", { path, len: coerceLen(len) });
 }