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Marcos Casagrande ec63b36994
perf(ext/event): optimize Event constructor (#20181)
This PR optimizes `Event` constructor

- ~Added a fast path for empty `eventInitDict`~ Removed `EventInit`
dictionary converter
- Don't make `isTrusted` a
[LegacyUnforgeable](https://webidl.spec.whatwg.org/#LegacyUnforgeable)
property. Doing so makes it non-spec compliant but calling
`Object/Reflect.defineProperty` on the constructor is a big bottleneck.
Node did the same a few months ago
https://github.com/nodejs/node/pull/46974. In my opinion, the
performance gains are worth deviating from the spec for a
browser-related property.

**This PR**

```
cpu: 13th Gen Intel(R) Core(TM) i9-13900H
runtime: deno 1.36.1 (x86_64-unknown-linux-gnu)

benchmark                      time (avg)        iter/s             (min … max)       p75       p99      p995
------------------------------------------------------------------------------- -----------------------------
event constructor no init      36.69 ns/iter  27,257,504.6   (33.36 ns … 42.45 ns)  37.71 ns  39.61 ns  40.07 ns
event constructor               36.7 ns/iter  27,246,776.6   (33.35 ns … 56.03 ns)  37.73 ns  40.14 ns  41.74 ns
```

**main**

```
cpu: 13th Gen Intel(R) Core(TM) i9-13900H
runtime: deno 1.36.1 (x86_64-unknown-linux-gnu)

benchmark                      time (avg)        iter/s             (min … max)       p75       p99      p995
------------------------------------------------------------------------------- -----------------------------
event constructor no init     380.48 ns/iter   2,628,275.8 (366.66 ns … 399.39 ns) 384.58 ns 398.27 ns 399.39 ns
event constructor             480.33 ns/iter   2,081,882.6 (466.67 ns … 503.47 ns) 484.27 ns 501.28 ns 503.47 ns
```

```js
Deno.bench("event constructor no init", () => {
  const event = new Event("foo");
});

Deno.bench("event constructor", () => {
  const event = new Event("foo", { bubbles: true, cancelable: false });
});
```

towards https://github.com/denoland/deno/issues/20167
2023-08-17 10:35:18 +02:00
.cargo fix: reload config files on watcher restarts (#19487) 2023-06-14 22:29:19 +00:00
.devcontainer chore: update devcontainer configuration (#15751) 2022-09-03 02:21:41 +02:00
.github chore: forward v1.36.1 to main (#20119) 2023-08-10 16:44:41 +03:00
bench_util chore: forward v1.36.1 to main (#20119) 2023-08-10 16:44:41 +03:00
cli perf(ext/event): optimize Event constructor (#20181) 2023-08-17 10:35:18 +02:00
ext perf(ext/event): optimize Event constructor (#20181) 2023-08-17 10:35:18 +02:00
runtime fix(runtime): use host header for inspector websocket URL (#20171) 2023-08-15 22:30:33 +00:00
test_ffi chore: update to Rust 1.71 (#19822) 2023-07-13 15:16:24 -06:00
test_napi fix(node): don't print warning on process.dlopen.flags (#20124) 2023-08-10 20:19:20 +02:00
test_util chore: upgrade fastwebsockets to 0.4.4 (#19089) 2023-08-10 09:59:06 +05:30
third_party@7f1a41fee1 chore: upgrade to dprint 0.40 internally (#19998) 2023-07-31 17:10:10 +02:00
tools perf(ext/event): optimize Event constructor (#20181) 2023-08-17 10:35:18 +02:00
.dlint.json chore: update dlint to v0.37.0 for GitHub Actions (#17295) 2023-01-16 17:17:18 +01:00
.dprint.json fix(fmt): do not insert expr stmt leading semi-colon in do while stmt body (#20093) 2023-08-08 09:15:19 -04:00
.editorconfig editorconfig: Don't insert final newline in .out files (#1686) 2019-02-07 11:31:49 -05:00
.gitattributes fix(test): support typechecking docs with CRLF line endings (#12748) 2021-11-15 09:58:04 -05:00
.gitignore feat(cli): Adding JUnit test reports (#19747) 2023-07-27 00:12:35 +02:00
.gitmodules chore: check node_compat config diff in CI (#19119) 2023-05-15 21:22:53 +09:00
.rustfmt.toml chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
Cargo.lock chore: deno_core -> 0.201.0 (#20135) 2023-08-12 19:04:45 +00:00
Cargo.toml chore: deno_core -> 0.201.0 (#20135) 2023-08-12 19:04:45 +00:00
LICENSE.md chore: update copyright year to 2023 (#17247) 2023-01-02 21:00:42 +00:00
README.md docs: nitpick README (#19912) 2023-07-25 14:44:50 +09:00
Releases.md chore: forward v1.36.1 to main (#20119) 2023-08-10 16:44:41 +03:00
rust-toolchain.toml chore: update to Rust 1.71 (#19822) 2023-07-13 15:16:24 -06:00

Deno

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the deno mascot dinosaur standing in the rain

Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.

Features

Install

Shell (Mac, Linux):

curl -fsSL https://deno.land/install.sh | sh

PowerShell (Windows):

irm https://deno.land/install.ps1 | iex

Homebrew (Mac):

brew install deno

Chocolatey (Windows):

choco install deno

Scoop (Windows):

scoop install deno

Build and install from source using Cargo:

cargo install deno --locked

See deno_install and releases for other options.

Getting Started

Try running a simple program:

deno run https://deno.land/std/examples/welcome.ts

Or setup a simple HTTP server:

Deno.serve((_req) => new Response("Hello, World!"));

More Examples

Additional Resources

Contributing

We appreciate your help!

To contribute, please read our contributing instructions.