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51 lines
1.6 KiB
Markdown
51 lines
1.6 KiB
Markdown
# Ruff WASM
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> **⚠️ WARNING: This API is experimental and may change at any time**
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[**Docs**](https://docs.astral.sh/ruff/) | [**Playground**](https://play.ruff.rs/)
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An extremely fast Python linter and code formatter, written in Rust.
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This is a WASM version of the Ruff API which can be used to lint/format Python in a browser environment.
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There are multiple versions for the different wasm-pack targets. See [here](https://rustwasm.github.io/docs/wasm-bindgen/reference/deployment.html) for more info on targets.
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- [Bundler](https://www.npmjs.com/package/@astral-sh/ruff-wasm-bundler)
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- [Web](https://www.npmjs.com/package/@astral-sh/ruff-wasm-web)
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- [Node.js](https://www.npmjs.com/package/@astral-sh/ruff-wasm-nodejs)
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## Usage
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This example uses the wasm-pack web target and is known to work with Vite.
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```ts
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import init, { Workspace, type Diagnostic, PositionEncoding } from '@astral-sh/ruff-wasm-web';
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const exampleDocument = `print('hello'); print("world")`
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await init(); // Initializes WASM module
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// These are default settings just to illustrate configuring Ruff
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// Settings info: https://docs.astral.sh/ruff/settings
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const workspace = new Workspace({
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'line-length': 88,
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'indent-width': 4,
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format: {
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'indent-style': 'space',
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'quote-style': 'double',
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},
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lint: {
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select: [
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'E4',
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'E7',
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'E9',
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'F'
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],
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},
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}, PositionEncoding.UTF16);
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// Will contain 1 diagnostic code for E702: Multiple statements on one line
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const diagnostics: Diagnostic[] = workspace.check(exampleDocument);
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const formatted = workspace.format(exampleDocument);
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```
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