perf: avoid Response initialization

[tsctx]

Improves performance by avoiding the initialization process of Response.

Benchmark

const benchmark = require("benchmark");

const suite = new benchmark.Suite();

const { Response } = require(".");

const targetResponse = new Response(null);

suite.add("Response.json", () => {
  Response.json("Hi", undefined);
});

suite.add("Response.redirect", () => {
  Response.redirect("https://localhost", 302);
});

suite.add("Response#clone", () => {
  targetResponse.clone();
});

suite.on("cycle", function (event) {
  console.log(String(event.target));
});

// run async
new Promise((resolve) => setTimeout(resolve, 7000)).then(() =>
  suite.run({ async: true })
);

• main

Response.json x 127,860 ops/sec ±4.86% (71 runs sampled)
Response.redirect x 475,359 ops/sec ±2.67% (85 runs sampled)
Response#clone x 569,317 ops/sec ±1.18% (91 runs sampled)```

• this patch

Response.json x 143,726 ops/sec ±5.54% (76 runs sampled)
Response.redirect x 638,497 ops/sec ±1.73% (89 runs sampled)
Response#clone x 1,286,776 ops/sec ±1.36% (85 runs sampled)

[codecov-commenter]

Codecov Report

Attention: 148 lines in your changes are missing coverage. Please review.

Comparison is base (e39a632) 85.54% compared to head (392823f) 84.27%.
Report is 131 commits behind head on main.

Files	Patch %	Lines
lib/fetch/index.js	56.63%	49 Missing ⚠️
lib/fetch/util.js	23.72%	45 Missing ⚠️
lib/handler/RetryHandler.js	73.91%	30 Missing ⚠️
lib/compat/dispatcher-weakref.js	28.57%	5 Missing ⚠️
lib/fetch/headers.js	88.63%	5 Missing ⚠️
lib/api/readable.js	80.00%	4 Missing ⚠️
lib/client.js	92.10%	3 Missing ⚠️
lib/core/util.js	91.66%	2 Missing ⚠️
lib/fetch/request.js	90.47%	2 Missing ⚠️
lib/core/request.js	97.56%	1 Missing ⚠️
... and 2 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2489      +/-   ##
==========================================
- Coverage   85.54%   84.27%   -1.28%     
==========================================
  Files          76       77       +1     
  Lines        6858     7142     +284     
==========================================
+ Hits         5867     6019     +152     
- Misses        991     1123     +132     

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[tsctx]

Hi @KhafraDev @ronag,
What do you think about this?

[tsctx]

I think this will improve the performance of the fetch, maybe only a little.

[mcollina]

lgtm