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A modern runtime for JavaScript and TypeScript.
https://deno.com/
75ea2c1b20
This PR optimizes `URLPattern.exec` - Use component keys from constructor instead of calling it on every `.exec`. AFAIK keys should always be `protocol`,`username`,`password`,`hostname`,`port`,`pathname`,`search`,`hash`. Haven't looked much into it but I think it's safe to define these outside the constructor as well. - Add a fast path for `/^$/u` (default regexp) and empty input - Replaced `ArrayPrototypeMap` & `ObjectFromEntries` with a `for` loop. **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 --------------------------------------------------------------- ----------------------------- exec 1 2.17 µs/iter 461,022.8 (2.14 µs … 2.27 µs) 2.18 µs 2.27 µs 2.27 µs exec 2 4.13 µs/iter 242,173.4 (4.08 µs … 4.27 µs) 4.15 µs 4.27 µs 4.27 µs exec 3 2.55 µs/iter 391,508.1 (2.53 µs … 2.68 µs) 2.56 µs 2.68 µs 2.68 µs ``` **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 --------------------------------------------------------------- ----------------------------- exec 1 2.45 µs/iter 408,092.4 (2.41 µs … 2.55 µs) 2.46 µs 2.55 µs 2.55 µs exec 2 4.41 µs/iter 226,706.0 (3.49 µs … 399.56 µs) 4.39 µs 5.49 µs 6.07 µs exec 3 2.99 µs/iter 334,833.4 (2.94 µs … 3.21 µs) 2.99 µs 3.21 µs 3.21 µs ``` |
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| test_util | ||
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| .rustfmt.toml | ||
| Cargo.lock | ||
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| LICENSE.md | ||
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Deno
Deno is a simple, modern and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust.
Features
- Secure by default. No file, network, or environment access, unless explicitly enabled.
- Provides
web platform functionality and APIs,
e.g. using ES modules, web workers, and
fetch(). - Supports TypeScript out of the box.
- Ships only a single executable file.
- Built-in tooling including
deno test,deno fmt,deno bench, and more. - Includes a set of reviewed standard modules guaranteed to work with Deno.
- Supports npm.
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
deno run https://deno.land/std/examples/welcome.ts
Or setup a simple HTTP server:
Deno.serve((_req) => new Response("Hello, World!"));
Additional Resources
- The Deno Manual is a great starting point for additional examples, setting up your environment, using npm, and more.
- Runtime API reference documents all APIs built into Deno CLI.
- Deno Standard Modules do not have external dependencies and are reviewed by the Deno core team.
- deno.land/x is the registry for third party modules.
- Blog is where the Deno team shares important product updates and “how to”s about solving technical problems.
Contributing
We appreciate your help!
To contribute, please read our contributing instructions.