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2d3d0a579d
This PR optimizes the `getHeader` function by replacing `.filter` and
`.map` with a `for` loop
**this patch**
```
cpu: 13th Gen Intel(R) Core(TM) i9-13900H
runtime: deno 1.36.0 (x86_64-unknown-linux-gnu)
benchmark time (avg) iter/s (min … max) p75 p99 p995
----------------------------------------------------------------- -----------------------------
Headers.get 132.2 ns/iter 7,564,093.4 (125.81 ns … 147.66 ns) 133.79 ns 144.92 ns 145.36 ns
```
**main**
```
cpu: 13th Gen Intel(R) Core(TM) i9-13900H
runtime: deno 1.36.0 (x86_64-unknown-linux-gnu)
benchmark time (avg) iter/s (min … max) p75 p99 p995
----------------------------------------------------------------- -----------------------------
Headers.get 191.48 ns/iter 5,222,523.6 (182.75 ns … 212.22 ns) 193.5 ns 205.96 ns 211.51 ns
```
```js
const headers = new Headers({
"Content-Type": "application/json",
"Date": "Thu, 10 Aug 2023 07:45:10 GMT",
"X-Deno": "Deno",
"Powered-By": "Deno",
"Content-Encoding": "gzip",
"Set-Cookie": "__Secure-ID=123; Secure; Domain=example.com",
"Content-Length": "150",
"Vary": "Accept-Encoding, Accept, X-Requested-With",
});
Deno.bench("Headers.get", () => {
const i = headers.get("x-deno");
});
```
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|---|---|---|
| .. | ||
| broadcast_channel | ||
| cache | ||
| console | ||
| crypto | ||
| fetch | ||
| ffi | ||
| fs | ||
| http | ||
| io | ||
| kv | ||
| napi | ||
| net | ||
| node | ||
| tls | ||
| url | ||
| web | ||
| webidl | ||
| websocket | ||
| webstorage | ||