Add deno.readAll() (#1234)

1 files changed, 8 insertions, 0 deletions

diff --git a/js/buffer.ts b/js/buffer.ts
index b06259ed0..4e9cd6eb2 100644
--- a/js/buffer.ts
+++ b/js/buffer.ts
@@ -221,3 +221,11 @@ export class Buffer implements Reader, Writer {
     }
   }
 }
+
+/** Read `r` until EOF and return the content as `Uint8Array`.
+ */
+export async function readAll(r: Reader): Promise<Uint8Array> {
+  const buf = new Buffer();
+  await buf.readFrom(r);
+  return buf.bytes();
+}