lib: remove internal `util._extends()` usage

This removes all internal calls to the deprecated `_extends()`
function. It is slower than `Object.assign()` and the object spread
notation since V8 6.8 and using the spread notation often also
results in shorter code.

PR-URL: https://github.com/nodejs/node/pull/25105
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/lib/zlib.js b/lib/zlib.js
index a5d7ee82e3..51fb316b30 100644
--- a/lib/zlib.js
+++ b/lib/zlib.js
@@ -30,7 +30,6 @@ const {
 const Transform = require('_stream_transform');
 const {
   deprecate,
-  _extend,
   types: {
     isAnyArrayBuffer,
     isArrayBufferView
@@ -233,7 +232,7 @@ function ZlibBase(opts, mode, handle, { flush, finishFlush, fullFlush }) {
       Z_NO_FLUSH, Z_BLOCK, finishFlush);
 
     if (opts.encoding || opts.objectMode || opts.writableObjectMode) {
-      opts = _extend({}, opts);
+      opts = { ...opts };
       opts.encoding = null;
       opts.objectMode = false;
       opts.writableObjectMode = false;