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<img align="right" src="https://cdn.justjs.dev/assets/svg/logo.svg" height="150px" alt="just circle logo">
Just is a _simple_, and _modern_ runtime for **JavaScript** that uses V8 and is built in Rust.
### Features
- Multiple ways to import files.
- External language support [like go](https://github.com/exact-rs/just/tree/master/src/go).
- Built code formatter and task runner.
- Builds a self-contained executable.
- Useful [built-in](https://justjs.dev/docs/tools) utilities.
- Includes a set of standard modules for [Just](https://r.justjs.dev/std).
### Install
Shell (Mac, Linux):
```sh
curl -fsSL https://justjs.dev/install.sh | sh
```
PowerShell (Windows):
```powershell
irm https://justjs.dev/install.ps1 | iex
```
[Homebrew](https://formulae.brew.sh/formula/justjs) (Mac):
```sh
brew install justjs
```
[Chocolatey](https://chocolatey.org/packages/justjs) (Windows):
```powershell
choco install justjs
```
[Scoop](https://scoop.sh/) (Windows):
```powershell
scoop install justjs
```
Build and install from source using [Cargo](https://crates.io/crates/justjs):
```sh
cargo install justjs --locked
```
### Getting Started
Try running a simple program:
```sh
just run https://r.justjs.dev/std/examples/welcome.js
```
Or a more complex one:
```js
const db = new Database('db_name');
db.create('versions', 'id text primary key, version text');
await cmd.spawn('just -v').then((output) => {
db.add('versions', { id: core.id.secure(), version: output });
});
console.json(db.get('versions', "where version = '%s'".format(cmd.exec('just -v'))), true);
```
Just package registry can be located [here](https://r.justjs.dev/).
You can find a deeper introduction, examples, and environment setup guides in
the [docs](https://justjs.dev/docs).
The complete API reference is available at the runtime
[documentation](https://justjs.dev/docs/api).